The Denver Show 2012 Mineral Rooms
Updated January 8th, 2013
Colorful specimen featuring Bornite
coated Chalcopyrite crystals with pinkish Calcite!
Lots of luster and rainbow iridescent color highlights this small cab. The specimen probably dates
back to this early 1940's and was part of the large Philadelphia Academy collection. The Chalcopyrites
are very well formed and oocassionally appear as golden patches between the iridescent Bornite coating.
The addition of pink Calcite crystals is an added bonus and really makes the piece!
From Guanajuato, Guanajuato, Mexico.
Measures 7.5 cm by 6.9 cm in size.
Ex. Philadelphia Academy of Natural Sciences
Beautiful specimen featuring two
tri-color Tourmaline crystals with Albite!
Both crystals exhibit a gorgeous laying of yellow-green to green to pink at both perfect
terminations! The surfaces are well striated and super glassy while the pink portions
near the tips are gemmy. Both crystals are held tight by several blades of Cleavelandite.
From Paprok, Nuristan Province, Afghanistan.
Measures 3.3 cm by 2.7 cm in size.
Ex. Matthew Webb Collection
Fine specimen featuring pink blushed
Calcite crystals on Calcite covered matrix!
The large Calcites sit atop a matrix of smaller but still sharp Calcite crystals. One of
the best examples of Calcite I've seen from this region with 3.5 cm and 2 cm crystals!
From the Haramosh Mountains in Northern Pakistan.
Measures 6.5 cm by 9 cm in total size.
Large cabinet plate of vibrant purple
Fluorite with Barite blades in cluster!
These purple cubes are pure gems with internal phantoming and transparency all the way
down to the matrix! They sit atop a sparkling matrix of Quartz and provide a wonderful
color contrast for the creamy white Barite blade clusters. In very good condition overall.
From the Berbes Mine, Berbes, Asturias, Spain.
Measures 9.8 cm by 14 cm in size.
Sharp crystals of Native Copper rising up
from a Quartz covered matrix!
It all begins with a sharp 2.1 cm crystal which gives rise to a "tree-like" growth of smaller crystals!
From Keweenaw County, Upper Peninsula, Michigan.
Measures 6.3 cm by 6 cm in size.
Ex. Russell MacFall Collection
Impressive cluster of reddish-brown
Descloizite crystals on matrix!
An aesthetic cluster with excellent form and very few incomplete crystals.
The crystals themselves are very lustrous and translucent at the tips!
From the Berg Aukas Mine, Grootfontein, Namibia, SW Africa.
Measures 6 cm by 5.4 cm in size.
Glossy round clusters of Aragonite on
These clusters appear to be botryoidal but they are actually composed of small
surface blades. The color is a light aqua-green and the mounds are very shiny.
From the Tsumeb Mine, Tsumeb, Otjikoto Region, SW Africa.
Measures 6.2 cm by 8.4 cm in size.
Stunning specimen featuring three crystals
of Forsterite var. Peridot atop a Magnetite!
Very unique specimen featuring multiple terminated green crystals of gemmy Peridot!
The dark Magnetite crystal serves as the center base and measures 1.6 cm in size.
From Sapat Gali, Naran-Kagan Valley, Kohistan District, North-West Frontier Province, Pakistan.
Measures 2.7 cm by 3.2 cm in size.
Sweet specimen featuring a large,
shiny Sphalerite crystal set among Fluorite cubes on Dolostone!
In excellent conditional overall, the Sphalerite it aesthetically surrounded by the zoned Fluorites!
From the Elmwood Mine, Smith County, Tennessee.
Measures 7.5 cm by 7.4 cm in size.
Impressive crystals of lustrous Galena
with Sphalerite sitting atop Dolostone matrix!
The Sphalerite crystals are distinct and well isolated. One can be seen in front just
below the Galenas and the other is perched atop the matrix just behind the Galenas.
From the Cumberland Mine, Smith County, Tennesee.
Measures 7 cm by 6.2 cm in size.
Cute specimen featuring tranlucent Calcite
rhombs atop reddish Calcite!
From the Tsumeb Mine, Tsumeb, Namibia, SW Africa.
Measures 5 cm by 3.6 cm in size.
Ex. Uli Barman Mineral Collection
Beautifully patinaed specimen of
crystalline Native Copper on Copper spinels!
The color of the Copper crystals changes from bright Copper to reddish Copper as you move towards
the bottom. The largest crystals have the deepest patina color and all are sharp with lustrous faces.
I love the way the crystal habits change with each level of growth, mimicking the color change.
From the Centennial Mine, Keweenaw County, Michigan.
Measures 6 cm by 6 cm by 3.4 cm in size.
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