INCENTIVE STOCK OPTION 

                                         FOR

                                                                


               1.   Grant of Option.  As  of the Date of  Grant the Company
          hereby grants to Optionee this Incentive Stock Option to acquire 
                              (          ) Shares  pursuant to this Option,
          WHICH OPTION  SHALL BE  SUBJECT TO,  AND  HEREBY INCORPORATES  BY
          REFERENCE, ALL OF THE PROVISIONS  OF THE PLAN; provided, however,
          that where the  actual written provisions  of this Option  differ
          from the provisions of  the Plan, such provisions of  this Option
          shall control.

               2.   Definitions.  As used herein, the following terms shall
          have the meaning indicated:

               (a)  "Board"  shall  mean  the  Board of  Directors  of  the
          Company.

               (b)  "Cause" shall mean the Optionee's willful misconduct or
          gross negligence,  as reasonably  determined by the  Committee in
          its sole discretion.

               (c)  "Code" shall mean the Internal Revenue Code of 1986, as
          now or hereafter amended.

               (d)  "Committee" shall mean the committee, if any, appointed
          by the Board pursuant to Section 20 of the Plan.

               (e)  "Company" shall mean Hitox Corporation of America.

               (f)  "Date of Grant" shall mean                   .

               (g)  "Disability"     shall   mean  an   Optionee's  present
          incapacity resulting  from an injury or illness (either mental or
          physical) which, in the reasonable opinion of the Committee based
          on  such medical evidence as  it deems necessary,  will result in
          death or  can be expected  to continue for  a period of  at least
          twelve  (12) months and will prevent the Optionee from performing
          the  normal services  required of  the Optionee  by  the Company,
          provided, however, that such disability  did not result, in whole
          or in part:  (i) from chronic alcoholism; (ii) from addiction  to
          narcotics;  (ii) from  a felonious undertaking;  or (iv)  from an
          intentional self-inflicted wound.

               (h)  "Exchange  Act" shall mean  the Securities Exchange Act
          of 1934, as amended (the "Exchange Act").

               (i)  "Fair Market  Value" of  a Share  on a particular  date
          shall be the closing price of Stock on such date (or, if the date
          is not a business day, then on  the next preceding business day),
          which shall be (i) if the Stock is listed or admitted for trading


          on  any  United States  national  securities  exchange, the  last
          reported sale  price of Stock on such exchange as reported in any
          newspaper  of general circulation, (ii) if the Stock is quoted on
          NASDAQ  or  any  similar  system of  automated  dissemination  of
          quotations  of securities prices in common  use, the mean between
          the closing high bid and low asked quotations for such day of the
          Stock  on such system or (iii) if  neither clause (i) nor (ii) is
          applicable, a value  determined by any fair  and reasonable means
          prescribed by the Board.
           


               (k)  "Option" (when capitalized) shall mean this Option. 

               (l)  "Optionee" shall mean                                  
                 , and any person who succeeds to the rights of such person
          by reason of the death of such person.

               (m)  "Option Price" shall mean                          ($  
               ) per Share.

               (n)  "Plan"  shall mean  the 1990  Incentive Plan  For Hitox
          Corporation of America.

               (o)  "Share(s)"  shall mean a share  or shares of the common
          stock,  par value  twenty-five cents  ($0.25) per  share, of  the
          Company,  and the Shares subject to this Option shall be adjusted
          as provided in Section 16 of the Plan where applicable.

               3.   Conditions  for Grant  of Options.  (a)   The  grant of
          this Option does not confer upon  Optionee any right to remain in
          the employ of the Company.

               (b)  The Committee in its sole discretion shall determine in
          each case whether periods of military or government service shall
          constitute a continuation of employment for the  purposes of this
          Option.

               4.   Description  of Option.   This  Option is  an Incentive
          Stock Option.

               5.   Vesting Schedule.    [Alternate: This  Option is vested
          and  nonforfeitable prior  to  its  termination date.]The  Shares
          which may be  acquired through  the exercise of  this Option  are
          limited to those discribed in the vesting schedule below opposite
          the number of full            which have elapsed between the Date
          of Grant and the  date of referance, and all referances herein to
          the exercisability of  the Option, unless the  context requires a
          different interpetation, shall refer to the portion of the Option
          which  is exercisable at the time of referance in accordance with
          the vesting schedule below:


             Subsequent to Date of Grant     Percentage of Original Total
                                           Shares
                                                Which May Be Acquired
                          *                               %

                          *                               %

                          *                               %
                          *                               %


               6.   Exercise of Options.  (a)  This Option may be exercised
          at any time and from time to time during the term of such Option,
          in whole or in part.

               (b)  This Option may be  exercised (i) during the Optionee's
          lifetime, solely by the Optionee, or (ii) after Optionee's death,
          by  the personal representative  of the Optionee's  estate or the
          person  or persons entitled thereto  under his will  or under the
          laws of descent and distribution.

               (c)  This Option  shall  be deemed  exercised  when  (i) the
          Company has received written notice of such exercise delivered to
          the Company, (ii) full  payment of the aggregate Option  Price of
          the  Shares as to which the Option is exercised has been tendered
          to the  Company, and (iii) arrangements that  are satisfactory to
          the  Board  in  its  sole  discretion  have  been  made  for  the
          Optionee's payment to the Company of the amount, if any, that the
          Company determines to be necessary for the Company to withhold in
          accordance  with  the  applicable  federal or  state  income  tax
          withholding requirements.

               (d)  The  Option Price of any Shares purchased shall be paid
          solely  in cash, by certified or cashier's check, by money order,
          by personal check (if approved by the Board), [Alternate - or, at
          the option of the Optionee, in Shares owned by such Optionee,] or
          by  a  combination of  the above.    [Alternate :For  purposes of
          determining  the amount, if any, of the Option Price satisfied by
          payment in Shares, such Shares shall be valued at its Fair Market
          Value, as established by the Committee in its sole discretion, on
          the date of exercise.  Any Shares tendered in satisfaction of all
          or  a portion of the Option Price shall be appropriately endorsed
          for transfer and assignment to the Company.

               (e)  The Optionee shall not  be, nor have any of  the rights
          or  privileges of, a shareholder  of the Company  with respect to
          any  Shares purchasable  upon the  exercise of  any part  of this
          Option  unless  and until  certificates representing  such Shares
          shall have been issued by the Company to the Optionee.

               7.   Termination  of Option  Period.   (a)   The unexercised
          portion  of  an Option  shall  automatically  and without  notice


          terminate and become null and void at the time of the earliest to
          occur of the following:

                    (i)  [Alternate - thirty (30)] days after the date that
               Optionee ceases to be employed by the Company  regardless of
               the reason  therefor, other  than a cessation  by reason  of
               death, Disability or for Cause;

                   (ii)  one (1) year after the  date on which the Optionee
               ceases  to   be  employed  by  the  Company   by  reason  of
               Disability; 

                  (iii)  (y) one  (1) year after  the  date  that  Optionee
               ceases to be employed  by the Company by reason of death, or
               (z) the later  of  (I) the  date  provided in  whichever  of
               Subsection 7(a)(i) or 7(a)(ii), if any, apply on the date of
               death,  and (II) six (6) months after the date on which such
               person shall die if that shall occur during whichever of the
               periods described in Subsection 7(a)(i) or 7(a)(ii), if any,
               apply on the date of death;

                    (iv)  the date  that Optionee ceases to be  employed by
               the Company, if such cessation is for Cause; and 

                    (v)  the            (       th) anniversary of the Date
               of Grant; 

               (b)  The   Committee   may,   by   giving   written   notice
          ("Cancellation Notice"),  cancel, effective upon the  date of the
          consummation of  any of the transactions  described in Subsection
          15(a)  of the  Plan,  all or  any portion  of  such Option  which
          remains unexercised on such date.  Such Cancellation Notice shall
          be given  a reasonable period of time (but not less than 15 days)
          prior to the proposed date of such cancellation, and may be given
          either  before or  after shareholder  approval of  such corporate
          transaction.

               8.   Transferability   of   Options.  This  Option   is  not
          transferable by the Optionee  otherwise than by will or  the laws
          of descent and distribution and that so long as a Optionee lives,
          only such Optionee or his guardian or legal  representative shall
          have the rights set forth in such Option.

               9.   Issuance of Shares.  Optionee shall not be the owner of
          Shares  subject  to this  Option  unless  and until  certificates
          representing such Shares shall have been issued and delivered  to
          Optionee.   As  a  condition  of  any  issuance  of  Shares,  the
          Committee may obtain such agreements  or undertakings, if any, as
          the  Committee   may  deem  necessary  or   advisable  to  assure
          compliance with  any such law  or regulation  including, but  not
          limited to, the following:

                    (i)  a   representation,   warranty  or   agreement  by
               Optionee  that  he is acquiring the  Shares to be issued  to



               him for investment and not with a view to, or for sale in
               connection with, the distribution of any such Shares; and 
           
                    (ii) a  representation, warranty  or  agreement  to  be
               bound  by  any  legends that  are,  in  the  opinion of  the
               Committee,  necessary or  appropriate  to  comply  with  the
               provisions of any  securities law deemed by the Committee to
               be applicable to the issuance of the Shares and are endorsed
               upon the Share certificates.

          Notwithstanding any  provision hereof to the  contrary, no Shares
          shall be required to be issued with respect to this Option unless
          counsel for the Company  shall be reasonably satisfied  that such
          issuance  will be in compliance with  applicable Federal or state
          securities  and other applicable laws.

               10.  Notice  of  Disqualifying  Disposition.   In  order  to
          enable the Company to avail itself of any income tax deduction to
          which it may be  entitled, the Optionee shall notify  the Company
          of his intent to dispose of  any of the Shares purchased pursuant
          to this Incentive Stock Option within two (2) years from the Date
          of Grant of the Incentive Stock Option and one (1)  year from the
          date  of exercise  of  the Incentive  Stock Option,  and promptly
          after such disposition  the Optionee shall notify the  Company of
          the  number of Shares disposed  of, the dates  of acquisition and
          disposition  of  such  Shares,  and the  consideration,  if  any,
          received on  such  disposition.   Nothing  in this  Paragraph  *,
          however, shall give the  Optionee any right to dispose  of Shares
          that  is inconsistent  with  any provision  of  the Plan  or  any
          Paragraph  of this  Agreement.   If in  connection with  any such
          disposition the Company becomes  liable for withholding taxes and
          has no amounts  owing the  Optionee with which  to discharge  its
          withholding obligation, the  Optionee shall  provide the  Company
          with  the amount  needed to  discharge the  Company's withholding
          obligation and shall indemnify  the Company against any penalties
          it may incur  through its  inability to apply  amounts owing  the
          Optionee in discharge of its withholding obligation.  Nothing  in
          this  Paragraph shall give the  Optionee any right  to dispose of
          Shares in a  manner that  is inconsistent with  any provision  of
          this  Agreement,  the Plan,  or  any  stock transfer  restriction
          agreement entered into by the Optionee. 


               11.  Tax Withholding.   Upon the exercise of  an Option, and
          before  the  transfer of  Shares, the  Optionee  must pay  to the
          Company, in cash or in Shares (including, but not limited to, the
          reservation to  the Company  of the  requisite  number of  Shares
          otherwise payable to such person with respect to such Option) the
          amount which the Company reasonably determines to be necessary in
          order  for the Company to comply with applicable federal or state
          tax  withholding  requirements,  including applicable  employment
          taxes;  provided, further,  that the  Committee may  require that
          such payment be made in cash.




               12.  Notice.   Whenever any notice is  required or permitted
          hereunder,  such  notice  must   be  in  writing  and  personally
          delivered  or sent by mail.  Any  notice required or permitted to
          be delivered hereunder  shall be  deemed to be  delivered on  the
          date  which  it is  personally  delivered,  or, whether  actually
          received or not, on the third business day after it  is deposited
          in  the  United States  mail,  certified  or registered,  postage
          prepaid,  addressed to  the person  who is  to receive it  at the
          address which  such person  has theretofore specified  by written
          notice delivered in accordance herewith.  The Company or Optionee
          may change, at any time and  from time to time, by written notice
          to  the other,  the  address previously  specified for  receiving
          notices.  Until changed  in accordance herewith, the  Company and
          the  Optionee specify  their  respective addresses  as set  forth
          below: 

               Company:            Hitox Corporation of America
                                   Attention:  President
                                   418 Peoples Street
                                   Corpus Christi, Tx.  78403-2544

               Optionee:           _________________________
                                   _________________________
                                   _________________________


               13.  Interpretation.  (a)  If any provision of the Option is
          held  invalid for any reason,  such holding shall  not affect the
          remaining provisions hereof, but instead the Option shall be con-
          strued  and enforced as if such provision had never been included
          in the Option.

               (b)  THIS  OPTION SHALL BE GOVERNED BY THE LAWS OF THE STATE
          OF TEXAS.

               (c)  Headings contained  in this Option are  for convenience
          only and shall in no manner be construed as part of this Option.

               (d)  Any reference  to the  masculine,  feminine, or  neuter
          gender   shall  be  a  reference  to  such  other  gender  as  is
          appropriate.

               14.  Amendment.  The Board, or the Committee (subject to the
          prior  written authorization of the Board), may from time to time
          amend  this Option  in any  regard, except  as such  amendment is
          expressly limited under the Plan.


                                                  HITOX    CORPORATION   OF
                                                  AMERICA