MINERALS - PAGE 2

(CLICK ON THUMBNAIL FOR LARGER VIEW)
WULFENITE  w/MIMETITE
(LEAD MOLYBDENATE)
from MAPIMI, MEXICO

A secondary mineral occurring in the oxidation zone of lead ore deposits, often as a psuedomorphs after cerrusite.

3 " x 1 3/4"

$65.00
VANADINITE w/BARITE
(LEAD CHLOROVANADINATE)
from MIBLADEN, MOROCCO

A secondary mineral found in the oxidation zone of lead mineral deposits.
 
1 1/2" x 1 1/2"

$30.00
TOURMALINE - ELBAITE
(SODIUM LITHIUM ALUMINUM
BORO-SILICATE HYRDOXIDE)
from AFGHANISTAN

Elbaite is the most colorful of the Tourmaline Group.  It is common in igneous and metamorphic rocks and in sedimentary rocks as detrital or authigenic grains.

3/4" x 5/8"

$60.00
STIBNITE
(ANTIMONY SULFIDE)
from HUNAN PROV., CHINA

 Stibnite is the most importance source for the metalloid antimony.  Antimony is used as an alloying metal and as raw material for pigment.  Stibnite occurs in stibnite-quartz veins or in lead or silver deposits.

4 1/4" x 1 3/4"

SOLD
STAUROLITE
(IRON MAGNESIUM ZINC ALUMINUM SILICATE HYDROXIDE)
from KEIVY MTS.,
KOLA PENINSULA, RUSSIA

Staurolite is one of the index minerals useful in determining the degree of metamorphism.  Occurs in metamorphosed pelitic rocks, gniess, mica schists, and occasionally as residual minerals, after weathering, in sands.

MATRIX - 2 1/2" x 2"
CRYSTAL - 1 1/2" x 1 5/8"

$70.00
NATIVE SULFUR (SULPHUR)
(S - ELEMENTAL SULFUR)
from BAJA, CALIFORNIA

Frequently occurs in volcanic areas originating from gases and thermal springs.  Also associated with sedimentary deposits of the evaporate type and with oil-bearing deposits.

2 3/4" x 2 3/4"

$30.00
TALC w/ALBITE
(MAGNESIUM SILICATE HYDROXIDE)
from NEW ENGLAND, USA

An alteration product of magnesium silicates.  Occurs bedded or as joint fillings  in crystalline schists, limestone and dolomite.  Feels greasy.

7" x 5"

$40.00