Exceptional Heart Shaped Formation with Icy Calcites

With its extremely unusual central amethyst epimorph after calcite, this natural wonder evokes images of the legendary sword, Excalibur, magically fixed in the stone. Elsewhere we ...

An incredible amethyst formation with central calcite "arch" and calcite spear. Two special calcite formations are shown here; the first is a beautiful arch covered with a blanket...

This heart shaped formation has a beautiful contrast of a polished white quartz exterior with an interior laden with pink druzy stalactites. This ...

A pleasing lilac amethyst formation of large crystals with a large honey coloured calcite at the centre and a smaller calcite to the side. Amethyst is predominantly light violet ...

Two calcite “towers” grace the centre of this impressive piece, which also has large peaked amethyst crystals and quartz and goethite covered calcites. The exterior has been kept i...

Stunning Pyrite piece from the mineral-rich soils of Peru, this piece is a symphony of metallic luster and geometric precision. Its perfect cubic crystals are interlocked in a captiv...

An amethyst crystal with central calcite piece.   

An Amethyst Geode that brings rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare calcite inclusions, this is a piece of natural artistry. This geode is a cen...

An Amethyst Geode that brings rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare double-terminated calcite inclusions, this is a piece of natural artistry. T...

A pair of Amethyst Geodes, each bringing the rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare calcite inclusions, are pieces of natural artistry. These geo...

The name “dioptase” comes from Greek, roughly translates to "to see through," and references the visibility of the cleavage plains within the translucent, brilliantly emerald green c...

A fine and impressive 102 pound Honeycomb calcite crystal or stone. Features ten drilled holes. The stone is transparent and translucent, offering a luminous glow when accentuated by artificial, direct or indirect lighting. Honeycomb Calcite is a beautiful and impressive form of calcite. Mined exclusively in the Salt Lake City region. Honeycomb Calcite, much like onyx and marble (in general characteristics) can provide a colorful replacement or dramatic accent stone for architectural and artistic applications. Back in 1995, valuable calcite deposits were discovered in Northern Utah and Shamrock Mining Associates would gain the exclusive mining rights to Utah’s beautiful Amber Onyx, also called Honey Onyx or Honeycomb Calcite. The “explorer” who made the discovery was Floyd Anderson, now a vibrant 95-years-old. He has a PhD in family relations and psychology, and was looking for an adventure that was different from his career in higher education, when he got an invitation to search for emeralds with a group of distinguished geologists, a gemologist and graduate students from BYU. No emeralds...