Mine detail: Rockland Mine

Previously called ''

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Location

Lat / long:

27.75811, -81.86698

Resource(B)

Primary:	Phosphorus-Phosphates
Tertiary:	Fluorine-Fluorite, Aluminum, Uranium, Iron, Magnesite
Ore:	Collophane
Orebody form:	BLANKET (COVERS 2000 SQ MI OF THE COASTAL PLAIN)
Discovery year:	1920

Production

Operation type:	Unknown
Production size:	Large
Development status:	Producer
First production started:	1968

Geology

Host rock:	Bone Valley;Hawthorn: Underlies Bone Valley Unconformably. Yellow-Tan Dolostone
Host type:	Phosphorite
Structure:	Sand, Clay, Dolomite, Phosphorite
Alteration processes:	Clay Altered To Lateritic Aluminum Phosphates, Supergene Uranium Enrichment, Montmorillonite Transformed To Kaolinite.

References

MRDS	W031382
DEP	10080271
Reference	{Deposit:: ZELLAR-WILLIAMS, INC. EVALUATION OF THE PHOSPHATE DEPOSITS OF FLORIDA USING THE MINERALS AVAILABILITY SYSTEMS, BUMINES OPEN FILE REPORT 112-78, NTIS: PB 286-648/AS 1978, 199 PP.}{Deposit:: KRAUSS AND OTHERS, 1984, INTERNATIONAL STRATEGIC MINERALS INVENTORY SUMMARY REPORT-- PHOSPHATE: U.S. GEOLOGICAL SURVEY CIRCULAR 930-C, 41 P.}{Deposit:: Central Florida Phosphate Industry Areawide Impact Assessment Program, Existing Land Use, Vol. Iv, Prepared For U.S.E.P.A By Texas Instruments Inc. June 1977.Central Florida Phosphate Industry Areawide Impact Assessment Program, Existing Land Use, Vol. Iv, Prepared For U.S.E.P.A By Texas Instruments Inc. June 1977.}{Deposit:: The Williams Companies. Form 10-K. 1976.The Williams Companies. Form 10-K. 1976.}{Deposit:: Zellars-Williams Inc., Evaluation Of The Phosphate DeZellars-Williams Inc., Evaluation Of The Phosphate De}{Other Database:: ISMI}
Reporter	Sutphin, David M., Nicholson, S.W.