Fluorite - A large Cabinet Specimen : Cave-in-Rock District, Illinois
A classic plate of inter-grown fluorite crystals from a classic American locality. Deep blue and purple zones run through this large cabinet specimen of nature's cubic architecture. The largest crystal face measures 14.4cm across.
30 1/2 x 30 1/2 x 30cm
Gypsum (var. Selenite) Whyalla, Eyre Peninsula, South Australia, Australia
These gemmy bright orange selenite crystals spring forth as evaporates from a pool of gypsum-rich water that is run-off from sedimentary bedrock. They form seasonally and in a matter of weeks under the right conditions. Note the branch around which these crystals grew in the closeup image.
A showy cabinet specimen measuring 31.7 x 15.2 x 24cm.
A rare and superb grouping of quartz stalactites of snow white druzy quartz with blades of stilbite or possibly the very rare, Barrerite, from Kuiu Island, Petersberg, Alaska. Measuring approximately 22.8 x 28cm, it may be one of the finest large cabinet specimens ever recovered from this one time discovery at this remote locality.
Nestled in a matrix of carbonaceous shale, calcite and pyrite, the 13.8mm Colombian emerald crystal glistens. The remains of five other small emeralds has survived as well. This is a specimen known as a ganga, a chance of good fortune.
4 1/2 x 3 1/2 x 2 1/2 inches
Captured in Time - A spectacular event under the sea
What appears to be red coral is, in fact, the result of overgrowth after the death of a branching, white hard coral; colonized or taken over by a sponge, algae or bryozoan which appears as a red encrustation. Please take note in the additional images where the deep folds of the large clam shell can be seen to which, the coral originally attached itself.
Calcite (Manganoan) with Magnetite and Quartz Pachapaqui Mine - Bolgnese Province - Ancash -Peru
This single crystal of the Manganoan variety of Calcite on a matrix of Magnetite and Quartz measures approx. 6 x 5 x 6 inches and weighs a hefty (just under) 9 lbs.!
Pachapaqui Mine - Bolognese Province - Ancash DPT - Peru
Sky blue and glassy celestite crystals fill the dense pocket, some measuring over 2 inches in length! The vug weighs over 24 lbs and measures 8 inches across at the opening of the cavity, with a depth of over 5 inches.
Rubellite, Tourmaline perched upon Albite and Lepidolite
As if defying gravity, the rubellite crystal is perched awkwardly on the large albite crystal and decorated here and there with lilac colored lepidolite. Brazil.
2 3/8" x 3 1/8"
The tourmaline measures 1 1/8" in length.
A rare diamond conglomerate specimen from Diamantina, Brazil. There are 3 diamond crystal exposed in this compacted mass of rocks that has captured the diamonds over aeons by the forces of nature, resulting in an extraordinary specimen that would certainly add to your collection of fine minerals.
6" x 5" x 3"
Virgin Valley, Nevada produces some of the finest opal in the world. Ironically it is highly prone to crazing, and for this type of opal, crazing is due to rapid dehydration once the material is exposed to the atmosphere, resulting in the appearance of craze lines, cracks and fissures. Virgin Valley opal is valued most as material for inlay and also for the spectacular specimens of opalized wood it produces such as this branch section bursting with play of color. 3/4" x 1 7/8"
Schorl, Tourmaline with Quartz Druse on Albite, Feldspar - Brazil
This is a jewel of a tourmaline cabinet specimen! Overgrowth of tiny quartz crystals adorn the albite crystals. Together they surround and partially conceal the emergent behemoth in the form of the well defined schorl crystal. "So black, it's almost blue", tourmaline.
10.1 x 12cm
The termination of the schorl crystal measures 5cm across.
This palm sized, rounded pebble of transparent, natural greenish blue topaz is the result of tumbling; not in a machine, but rather in a Brazilian river over an incalculable period, affectionately known as an Aeon of Time. The pebble measures 2 3/8" on its long side and approx. 11mm thick. It weighs 204.79 carats or 40.96 grams. Is this a fine mineral specimen? No, but it's neat.