SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC  20549

                              ___________________

                                 SCHEDULE 13G

              INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
		  UNDER THE SECURITIES EXCHANGE ACT OF 1934


			      OGLEBAY NORTON COMPANY
				(Name of Issuer)


			 Common Stock, $.01 Par Value
			(Title of Class of Securities)


				    677007205
				  (CUSIP Number)

                                March 23, 2005
                 (Date of event which requires filing this statement)


Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:

	[ ]  Rule 13d-1 (b)
	[X]  Rule 13d-1 (c)
	[ ]  Rule 13d-1 (d)

	*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to the
subject class of securities, and for any subsequent amendment
containing information which would alter the disclosures provided in
a prior cover page.

The information required in the remainder of this cover page shall
not be deemed to the "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act but shall be subject to all
other provisions of the Act (however, see the Notes).



SCHEDULE 13G


	1
NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Caxton International Limited

	2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
        (a)  n/a
	(b)  n/a

	3
SEC USE ONLY

	4
CITIZENSHIP OR PLACE OF ORGANIZATION
British Virgin Islands

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

	5
SOLE VOTING POWER
0

	6
SHARED VOTING POWER
221,800


	7
SOLE DISPOSITIVE POWER
0

	8
SHARED DISPOSITIVE POWER
221,800

	9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
221,800

	10
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	o


	11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.2%

	12
TYPE OF REPORTING PERSON*
CO

*SEE INSTRUCTIONS BEFORE FILLING OUT!



SCHEDULE 13G

	1
NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON.

Caxton Associates, L.L.C.  22-3430173

	2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
	(a)  n/a
	(b)  n/a

	3
SEC USE ONLY

	4
CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

	5
SOLE VOTING POWER
0

	6
SHARED VOTING POWER
221,800

	7
SOLE DISPOSITIVE POWER
0

	8
SHARED DISPOSITIVE POWER
221,800

	9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
221,800

	10
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	o


	11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.2%

	12
TYPE OF REPORTING PERSON*
IA

*SEE INSTRUCTIONS BEFORE FILLING OUT!

SCHEDULE 13G

	1
NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON.

Bruce S. Kovner

	2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
       (a) n/a
       (b) n/a

	3
SEC USE ONLY

	4
CITIZENSHIP OR PLACE OF ORGANIZATION
United States

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

	5
SOLE VOTING POWER
0

	6
SHARED VOTING POWER
221,800

	7
SOLE DISPOSITIVE POWER
0

	8
SHARED DISPOSITIVE POWER
221,800

	9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
221,800

	10
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	o


	11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.2%

	12
TYPE OF REPORTING PERSON*
IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!




Item 1(a).	Name of Issuer:
		Oglebay Norton Company

Item 1 (b).	Address of Issuer's Principal Executive Offices:
		North Point Tower
		1001 Lakeside Avenue
		15th Floor
		Cleveland, OH 44114


Item 2 (a).	Name of Person Filing:

(i)   Caxton International Limited ("Caxton International")
(ii)  Caxton Associates, L.L.C. ("Caxton Associates").  Caxton
      Associates is the trading advisor to Caxton International
      and as such, has voting and dispositive power with
      respect to the investments of Caxton International.
(iii) Mr. Bruce S. Kovner.  Mr. Kovner is the Chairman of Caxton
      Associates and the sole shareholder of Caxton Corporation,
      the manager and majority owner of Caxton Associates. As a
      result of the foregoing, Mr. Kovner may be deemed
      beneficially to own the securities of the Issuer owned
      by Caxton International.

Item 2 (b).    Address of Principal Business Office or, if None,
               Residence:

(i)   The address of Caxton International is c/o Prime Management
      Limited, Mechanics Building, 12 Church Street, Hamilton HM11,
      Bermuda.
(ii)  The address of Caxton Associates is Princeton Plaza, Building 2,
      731 Alexander Road, Princeton, NJ 08540.
(iii) The business address of Mr. Kovner is 500 Park Avenue,
      New York, NY  10022.

Item 2 (c).	Citizenship:

(i)   Caxton International is a British Virgin Islands Corporation.
(ii)  Caxton Associates is a Delaware limited liability company.
(iii) Mr. Kovner is a United States citizen.



Item 2 (d).	Title of Class of Securities:
		 Common Stock

Item 2 (e).	CUSIP No: 677007205


Item 3.		If this statement is filed pursuant to Sec.
                240.13d-1(b) or 240.13d-2(b) or (c),
                check whether the person filing is a:
		Not applicable.

Item 4.		Ownership

(a) Amount beneficially owned:


(i)   The amount of shares of Common Stock beneficially owned by
      Caxton International is 221,800.
(ii)  The amount of shares of Common Stock considered to be
      beneficially owned by Caxton Associates by reason of its
      voting and dispositive powers is 221,800.
(iii) Mr. Kovner, by reason of being Chairman of Caxton Associates
      and the sole shareholder of Caxton Corporation, the manager
      and majority owner of Caxton Associates, may also be deemed to
      beneficially own such shares.

(b)  Percent of Class:

(i)   Caxton International beneficially owns 6.2% of the Class
      of Common Stock.
(ii)  Caxton Associates is deemed to beneficially own 6.2%
      of the class of Common Stock.
(iii) Mr. Kovner is deemed to beneficially own 6.2% of the Class
      of Common Stock.



(c)

     Number of shares as to which Caxton International has:
	(i)    Sole power to vote or to direct the vote:  0
	(ii)   Shared power to vote or to direct the vote:  221,800
	(iii)  Sole power to dispose or to direct the disposition:  0
	(iv)   Shared power to dispose or to direct the disposition
               of:  221,800


     Number of shares as to which Caxton Associates has:
	(i)    Sole power to vote or to direct the vote: 0
	(ii)   Shared power to vote or to direct the vote:  221,800
	(iii)  Sole power to dispose or to direct the disposition of:  0
	(iv)   Shared power to dispose or to direct the disposition
               of:  221,800

     Number of shares as to which Mr. Kovner has:
	(i)    Sole power to vote or to direct the vote: 0
	(ii)   Shared power to vote or to direct the vote:  221,800
	(iii)  Sole power to dispose or to direct the disposition of:   0
	(iv)   Shared power to dispose or to direct the disposition
               of:  221,800



Item 5.	        Ownership of Five Percent or Less of a Class.
	        Not Applicable.

Item 6.		Ownership of More than Five Percent on Behalf of
                Another Person.
	        Not Applicable.

Item 7.	        Identification and Classification of the Subsidiary
                Which Acquired the Security Reported on the Parent
                Holding Company.
	        Not Applicable.


Item 8.		Identification and Classification of Members
		of the Group.
		Not Applicable


Item 9.		Notice of Dissolution of Group.
		Not Applicable.

Item 10.	Certification.

	By signing below, each of the reporting persons hereby
certifies that, to the best of its knowledge and belief, the
securities referred to above were not acquired and are not being
held for the purpose of or with the effect of changing or
influencing the control of the issuer of such securities and
were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.


SIGNATURE

After reasonable inquiry and to the best of the undersigned's
knowledge and belief, the undersigned certifies that the
information set forth in this statement is true, complete,
and correct.


March 29, 2005



CAXTON INTERNATIONAL LIMITED


By:/s/Joseph Kelly
      Name:  Joseph Kelly
      Title: Vice President and Treasurer


By:/s/Maxwell Quin
      Name:  Maxwell Quin
      Title: Vice President and Secretary



CAXTON ASSOCIATES, L.L.C.


By:/s/Scott B. Bernstein
      Name:  Scott B. Bernstein
      Title: Secretary


/s/Bruce S. Kovner
Bruce S. Kovner, by Scott B. Bernstein as
Attorney-in-Fact



Certification


The undersigned hereby certifies that the shares of Oglebay
Norton Company purchased on behalf of Caxton International
Limited were not acquired and are not being held for the
purpose of or with the effect of changing or influencing
the control of the issuer of such securities and were not
acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.





 					/s/Emil Dabora
                                          Emil Dabora





Date: March 29, 2005



			JOINT ACQUISITION STATEMENT

			PURSUANT TO RULE 13d-1(k)(l)

The undersigned acknowledge and agree that the foregoing statement
on Schedule 13G is filed on behalf of each of the undersigned and
that all subsequent amendments to this statement on Schedule 13G
shall be filed on behalf of each of the undersigned without the
necessity of filing additional joint acquisition statements.  The
undersigned acknowledge that each shall be responsible for the timely
filing of such amendments, and for the completeness and accuracy of
the information concerning him or it contained therein, but shall not
be responsible for the completeness and accuracy of the information
concerning the other, except to the extent that he or it knows or has
reason to believe that such information is inaccurate.

Dated:  March 29, 2005


                                CAXTON INTERNATIONAL LIMITED

               			By:/s/Joseph Kelly
				Name:  Joseph Kelly
				Title: Vice President & Treasurer

				By:/s/Maxwell Quin
				Name:  Maxwell Quin
				Title: Vice President & Secretary


				CAXTON ASSOCIATES, L.L.C.

				By:/s/Scott B Bernstein
				Name:  Scott B. Bernstein
				Title: Secretary


			        /s/Bruce S. Kovner
   				Bruce S. Kovner, by Scott B.
                                Bernstein as Attorney-in-Fact