Mine Index 10082967 Minerva Oil Company, Crystal Mine

Disclaimer
	S-T-R	34(E2)-11S-9E
	County:	Hardin
	Quadrangle:	Saline Mines
	District:	Fluorspar District
	Subdistrict:	Cave-in-Rock Subdistrict

Mine Index Number: 10082967

ISGS ID:		MSHA ID:
MAS ID:	170690036	MRDS ID:	W062441
Company Name:	Minerva Oil Company
Mine/Site Name:	Crystal Mine
Active/Abandoned:	Abandoned
Start Date:	circa 1975	End Date:	Unknown
Commodity Type:	Metallic, Non-Metallic
Commodity:	Fluorspar, Lead, Silver, Zinc
Minerals Present:	Galena, Calcite, Fluorite, Sphalerite
Type of Mine:	Underground
District:	Fluorspar District	Subdistrict:	Cave-in-Rock Subdistrict
County:	Hardin
Section/Township/Range:	34(E2)-11S-9E
Latitude,Longitude:	37.5153499999998,-88.19253
Unit(s) Mined:	Upper Valmeyeran Series, Aux Vases Sandstone, Ste. Genevieve Limestone, St. Louis Sandstone
Feature(s) Mined:
MRDS Link:	https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10082967
Mindat link:

Discussion

Geologic structure: A Sharp Northwest-Trending Fold In The Northeast Part Of The Mine.

Ore body information: BLANKET

Discovered: 1842, 1929

Ore body information
Strike	N50E
Dip	08N
Thickness	3M
Depth to top	50M
Width	36M
Length	800M
Area	4HA
Field	Value
Type of Orebody #1	REPLACEMENT
Shape of Orebody #1	TABULAR
Type of Orebody #2	BRECCIA FILL
Type of Orebody #3	DISSEMINATED
Primary mode of Origin	HYDROTHERMAL
Secondary mode of Origin	CONT METASOMATIC
Primary Ore Control	FAULTING
Secondary Ore Control	BEDDING
Degree of Wallrock Alter.	SLIGHT
Type of Wallrock Alter. #1	DOLOMITIZATION
Strike And Dip	N50E
Total Surface Area (HA)	4
Date of Last Modification	830126

Workings at the site
Type of workings	Underground
Field	Value
MAS Development Schedule #	1
Mining Record #	1
Status of Mining Method	ESTIMATE
Mining Method	ROOM AND PILLAR 10-34
Swell Factor	.6
Percent Waste Rock	25
Hardness of Rock	SOFT NONPLASTIC FISSURED MODERATE WATER
Rock Characteristics	ONE SYSTEM OF WEAKNESS PLANES
Rock Support Chars.	SUPPORTING MAY BACK SLAB
Mine Support Chars.	POST, HEADBOARD, CAPS, ROOF BOLTS
Capacity Units	MT ORE/DAY
Units of Production	$/MT ORE
Year of Information	1972

RECORD 151/ 99 PERCENT OF FLUORSPAR PROCESSED BY GRAVITY MET WITH 95 PERCENT RECOVERY 95 PERCENT PROCESSED BY FLOATATION 92 PERCENT RECOVERY 27.6 PERCENT MILLFEED SHIPPED AS CONCENT RECORD 160/ MATERIAL HAULED BY TRUCK TO OHIO RIVER THIS MINE WAS OWNED BY MINERVA OIL CO.. MINERVA WAS BOUGHT OUT BY ALLIED. IN A TELEPHONE CONVERSATION WITH DAVID E. MORSE, FLOURINE SPECIALIST WITH USBM, HE STATED THAT THIS MINE WAS CLOSED IN 1972 AFTER PILLAR EXTRACTION.

Mine Data/Information

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:	Minerva Oil Company
	Mine Name:
	More Info:	CaveInRock MIN PropertyDrillHole.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Cave In Rock District Minerva Oil Company Date: 01/31/1964

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:	Mahoning Mining Company
	Mine Name:
	More Info:	CaveInRockPlanDrillOriginal.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Mahoning Ming Company Map of Cave-in-Rock Fluorspar District

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:	Ozark-Mahoning Company
	Mine Name:
	More Info:	CrystalMine UndergroundWorking Plan 2.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Ozark-Mahoning Company Map of Crystal Fluorspar Company Property Cave In Rock District

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:
	Mine Name:
	More Info:	CrystalMine UndergroundWorking Plan notes.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Crystal Fluorspar Company Underground workings and development

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:
	Mine Name:
	More Info:	CrystalMine UndergroundWorking Plan.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Crystal Fluorspar Company Underground workings and development

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:
	Mine Name:
	More Info:	CrystalMineUG MIN CaveInRock Plan.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Bottom of Rosiclare Formation Date: 1950

These files may not be true to scale and are not georgistered.	Mine Index:	10082967
	Company:
	Mine Name:
	More Info:	HardinCounty OZM GeoDrillMap.jpg
	Click to download Full ResolutionThese files are true to scale and most are georegistered for gis software. File Type: Map Caption: Map showing Stratigraphic Position of Mineralized rocks in Mines and test borings. Mahoning Mining Company Property and vicinity. (ISGS Map) Credit: Illinois State Geological Survey Date: 1945

References

U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM (MAS/MILS): U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95.

BASTIN, E.S., 1931, THE FLUORSPAR DEPOSITS OF HARDIN AND POPE COUNTIES, ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY BULLETIN 58, 116 P.

PHONE CONTACT 04/01/80 STATUS=CLOSED AS OF OCT 1979

WELLER M J ET AL GEOLOGY OF THE FLUORSPAR DEPOSITS OF ILLINO

ILL STATE GEOL SUR BULL 76 1952 P 128

CURRIER L W USGS BULL 942 1944 P 56

US BU MINES HEALTH AND SAFETY REPT CRYSTAL MINE JAN 1 1975

EDDY W H ET AL US BU MINES RI 6953 1967

WAR MINERALS REPORT NO. 35, ILL-KY FLUORSPAR DISTRICT, 1943.

External Links

Mineral Resources Data System (MRDS) USGS Link
https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10082967 Also referenced as 10120834