BARITE, CALCITE
Minerva #1 Mine, Hardin County, Illinois|
Group of many intergrown, double terminated white Barite xls. to 1 1/2” across, with several small scalenohedral Calcite xls. at the base.  On the back of the xl. group, the Barite xls. are also fully double terminated.  No matrix.  William Jacobs collection. UV fluorescence: SW & LW weak yellow-white.  Phos: SW & LW white, long-lasting in SW.
Specimen size:   1 5/8” wide, 1 1/4” tall, 1 1/8” thick
Order Item:  MI-1245 
Price:  $34.50

CALCITE on QUARTZ
Concepcion del Oro, State of Zacatecas, Mexico
For the Calcite locality specialist, this attractive “miniature” size specimen consists of a cluster of many intergrown, sparkly, light pink-lavender color Calcite crystals , formed as a secondary deposition on top of and almost completely covering a small group of Quartz crystals.  From the F. Marshall collection, this specimen is #138 – one of the earliest numbered specimens in the collection, purchased in 1965.  The original label is from Schneider’s Minerals, Poway, California.
Specimen size:  1 3/4” tall, 1 1/4” wide, and 1 1/8” thick
Order Item MI-1177              Price:  $45.00

ELBAITE TOURMALINE
Malkhane Pegmatite Field, near Kraniy Chikoy, Chita Oblast, Central Transbaikal Region, Russia
Specimens from this deposit have been available for 8-10 years.  This single crystal has three color zones.  The termination is a medium rose pink color, followed in the center of the crystal by a zone of lighter pink, then reverting back to the medium rose pink color at the base.  The termination is a typical flat top habit, with slightly beveled corners.  One of the corners has a small damaged area, and there is evidence that a tiny Quartz crystal was in contact with the termination in the pocket, during growth.  The prism faces are very sharp, and striated.  No matrix.
Specimen size:  1 1/8” tall, and 5/8” X 1/2” in cross section
Order Item MI-1170              Price:  $90.00 

ELBAITE TOURMALINE
Cruzeiro Mine, NW of Governador Valadares, Minas Gerais, Brazil
The Cruzeiro Mine is one of Brazil’s famous localities for Elbaite Tourmaline specimens, seen in a variety of colors from blue to pink to green.  This very interesting specimen has what is commonly referred to as a “brushy” or “asbestiform” termination.  That is, the termination is composed of many hundreds of acicular Elbaite crystals of a chatoyant, gray-green color, on top of a translucent, dark green Elbaite crystal.  The “brushy” portion of the termination is only about 1/16” thick, and it feels soft like fur.  An explanation of this habit appears in the “Mineralogical Record” special Tourmaline issue, Sept-Oct 1985, P. 340, and a photo of a specimen with an “asbestiform” termination appears on P. 341, Fig. 5, though the “asbestiform” habit is much more pronounced in the specimen illustrated in the magazine.  The prominent crystal on this specimen is 1 1/4” tall, and 5/8” X 1/2” in diameter.  Associated are several other intergrown Elbaite crystal sections – no rock matrix.  F. Marshall collection.
Specimen size:  1 1/4” tall, and 1 1/4” X 3/4” in cross section
Order Item MI-1173              Price:  $48.50

ELBAITE TOURMALINE on BERYL Var. Aquamarine
Erongo Mountains, Namibia
A brief mention of a find of Aquamarine crystals with Tourmaline inclusions appears in the “Mineralogical Record”, Sept-Oct 1988, P. 337.  Actually, the Erongo Mountains occurrence of prismatic Tourmaline associated with, as well as included within Aquamarine crystals, has been known since the 1970’s, and quite possibly a lot earlier than that time.  This single, pale aqua color hexagonal crystal of Beryl Var. Aquamarine has lots of dark green secondary Elbaite Tourmaline crystal prisms formed upon the prism faces, and completely covering the termination.  The back of the Beryl crystal has a small contact point where another Beryl crystal was touching, during growth.  No matrix.  F. Marshall collection.
Specimen size:  1”+ (27 mm) tall, and +/- 1/4” in cross section (8 X 7 mm)
Order Item MI-1174              Price:  $30.00

BARITE
Wet Grooves Mine, near Ashrigg, Wensleydale, N. Yorkshire, England
Very nice large miniature size specimen composed of a group of colorless to white Barite xls. on  xline-massive Quartz  and Sphalerite matrix. 
Specimen size:  2” tall, and 1 1/2” X 1 1/2” in cross section.
Order Item:  MI-1246
Price:  $40.00

BARITE
La Union, Cartagena, Murcia, Spain
More than 100 very sparkly white chisel point Barite xls. cover the front of the specimen.  The xls. are up to 1/2” tall, and 3/8” wide.  No rock matrix.  UV fluorescence is weak yellow-white under SW, with white phosphorescence.
Specimen size:  3 1/4” wide, 2 3/4” tall, and 1 1/4” thick
Order Item:  MI-1244
Price:  $45.00

TOPAZ, QUARTZ (Smoky)
Sherlovaya Gora, Nertschinsk Mines, Buriatia Republic, Transbaikalia, Eastern-Siberia Region, Russia
This specimen is originally from the Neal Yedlin collection, and most recently from the Jack Parnau collection.  A thin margin of massive white Quartz forms the matrix for small, dark Smoky Quartz crystals, both terminated and non-terminated.  Several colorless Topaz crystals are present on the specimen, ranging in size from 1/8”, to 1/4” X 1/4”.  The two largest Topaz crystals are 1/2” X 3/8”, and 1/2” X 1/4”.   Two of the crystals are double terminated.  Typical of this locality, the terminations of the Topaz crystals are translucent-white, and the prism faces are colorless-transparent.
Specimen size:  1 5/8” X 1 1/4” across, X 3/4” thick
Order Item MI-1300              Price:  $85.00

MALACHITE with CERUSSITE, on DOLOMITE
Tsumeb Mine, Tsumeb, Namibia
Drusy, very sparkly, micro white Dolomite xls. coat both sides of the matrix on this specimen.  Bright green Malachite formed as intergrown spheroids, scattered over the matrix.  A couple of very tiny twinned Cerussite xls. are present.  Mounted on a plastic display stand.  Claude Yoder collection.
Specimen size:  1 7/8” X 1 1/2” across, X 5/8” thick
Order Item MI-11142  SOLD

MIMETITE with MALACHITE
Tsumeb Mine, Tsumeb, Namibia
This very showy “miniature” size specimen has pale yellow Mimetite “cauliflowers” scattered all over the top of the matrix, associated with micro green botryoidal Malachite.  The centers of the larger Malachite “botryoids” are composed of dark red micro Cuprite crystals.  Rhombohedral Dolomite xls. are also associated.  Mounted on a plastic display stand.  Former collections of Dr. Fred D’Esopo, and Claude Yoder.
Specimen size:  1 3/4” X 1 3/8” across, X 5/8” thick
Order Item MI-1144     SOLD

COPPER on DOLOMITE
Tsumeb Mine, Tsumeb, Namibia
Sparkly white micro Dolomite xls. cover much of the matrix on this very nice “miniature” size specimen.  Native Copper is present as small, extra sharp arborescent crystal groups, deposited on both the front and back of the matrix.  Very nice specimen!  Mounted on a plastic display stand.  Claude Yoder collection.
Specimen size:  1 3/8” X 1” X 1”
Order Item MI-1145      SOLD

WULFENITE on DOLOMITE
Tsumeb Mine, Tsumeb, Namibia
Pearly luster, white drusy Dolomite crystals cover much of the surface of both the front and back of the matrix.  Six light yellow-golden terminated Wulfenite crystals, ranging in size from 3 mm to 8 mm, are standing up on edge, scattered over the front of the white Dolomite crystal covered matrix.  Three additional micro xls. of Wulfenite are present on the back of the specimen.  Mimetite has formed as several very pale yellow micro xl. sprays, laying flat on the Dolomite.  Minor amounts of colorless micro xls. of Smithsonite and Quartz are also associated.  Claude Yoder collection.
Specimen size:  2 1/2” wide, 1 1/2” tall, and up to 1” thick
Order Item MI-1147       SOLD

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