Minerals

Lapis lazuli or lapis for short, is a deep-blue metamorphic rock used as a semi-precious gemstone that has been prized since antiquity for its intense color.  This specimen shows deep blue with sparks of pyrite and is in great condition.

Product Type: Lapis Lazuli Rough
Specimen Size: Cabinet-Sized
Dimensions:  73x37x31 mm / 2.9x1.5x1.2 inches
Weight: 111.6 Grams / 3.9 ounces
Origin: Afghanistan

This is a specimen of Star Mica or Muscovite and Quartz cluster.  These clusters show crystals that grow in sheets or book formations.  It is silvery gold with good transparency when held up to the light.  The name Muscovite comes from the term Muscovy Glass which was a name for the thick sheets of Mica used as a substitute for glass Russia. The name Mica is derived from the Greek word that means to split.

On this nice specimen, the matrix faces are covered with beautiful golden yellow point stars of muscovite mica, a typical shape for this rare mica formation. The stars are the result of twinning; the points show a bit of wear but this does not detract from the beauty of such a piece.

Name: Star Mica - Muscovite with Quartz  
Specimen Size:  Miniature-Sized  
Dimensions:  40x38x36 mm / 1.6x1.5x1.3 inches  
Weight:  55.7 Grams / 2.0 ounces  
Origin: Mined in Minas Gerais, Brazil 

This is a beautiful piece of eudialyte from world famous Kipawa, Quebec.   It features raspberry red eudialyte with black and white crystals.  Would be a great addition to any collection.

Name: Eudialyte
Specimen Size:  Cabinet-Sized
Dimensions:  71x52x41 mm / 2.8x2.0x1.6 inches
Weight: 160.5 grams / 5.7 oz
Origin: Kipawa, Québec, Canada

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized Specimen
Dimensions:  43x28x21  mm / 1.7x1.1x0.8 inches
Weight: 37.6 grams / 1.3 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

Lapis lazuli or lapis for short, is a deep-blue metamorphic rock used as a semi-precious gemstone that has been prized since antiquity for its intense color.  This specimen shows deep blue with sparks of pyrite and is in great condition.

Product Type: Lapis Lazuli Rough
Specimen Size: Cabinet-Sized
Dimensions:  75x59x56 mm / 2.9x2.3x2.2 inches
Weight: 344 Grams / 12 ounces
Origin: Afghanistan

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized
Dimensions:  43x40x33  mm / 1.7x1.6x1.3 inches
Weight:  66.7 grams / 203 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

Jasper is a form of chalcedony, which is a type of microcrystalline quartz. It comes in a wide range of colors and patterns, often with unique banding, swirls, or speckles. Jasper is found all over the world and has been used for centuries in jewelry, carvings, and decorative objects due to its beauty and durability.

Beautiful colors for a set of display specimens which are perfect anywhere in your home.

Product Type: Jasper (One each of Brecciated, Dalmatian, Fancy and Desert (Sand))
Approx Weight (per lot) : 151.2 grams / 5.3 ounces
Size:  38x38x26 mm / 1.5x1.5x1.0 inches
Origin: Brazil

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized
Dimensions:  42x39x28 mm / 1.6x1.5x1.1 inches
Weight:  45.8 grams / 1.6 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Miniature-Sized
Dimensions:  40x36x24  mm / 1.6x1.4x0.9 inches
Weight:  51.7 grams / 1.8 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another.  The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.

The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.

These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters. They are in excellent condition.  This collector's specimen is unique, of great quality and ready for display.

Name: Goethite After Marcasite Pseudomorph
Specimen Size:  Cabinet-Sized
Dimensions:  62x36x32  mm / 2.4x1.4x1.2 inches
Weight: 72 grams / 2.5 ounces
Origin: Found in White Desert, Farafra Oasis, Egypt

This is a fabulous specimen of black kyanite mined in Marilac, Safira pegmatite district, Eastern Brazilian pegmatite province, Minas Gerais, Brazil.  The specimen will sit perfectly flat to allow easy display in a favorable position.

Kyanite is a silicate mineral and is known to be one of the most attractive natural minerals in the world. Frequently found with lustrous bladed crystals, the intensity of color varies by location of extraction.  Kyanite regularly forms fibrous, radiating crystals, as well as flattened and tabular. Some crystals form with white striations, color bands, and even multi-colored crystals, though typically found with a deep blue streak running down the middle.

Name:   Kyanite Crystal
Specimen Size:  Cabinet-Sized
Dimensions:  77x45x31 mm / 3.0x1.8x1.2 inches 
Weight:  164 grams / 5.8 Ounces 
Origin:  Safira pegmatite district, Eastern Brazilian pegmatite province, Minas Gerais, Brazil

Sodalite is usually found in the massive form, rather than crystals. Its name is derived from its sodium content. This stone is frequently found with lapis lazuli, but contains little or no golden pyrite specks in it as lapis does. It may, however, contain patches or streaks of white calcite. Although some people think that sodalite resembles lapis in some ways, it is entirely different in chemical composition and has more of a navy blue coloring.

Would be a beautiful addition to any new or existing collection.

Name:  Sodalite
Specimen Size:  Miniature-Sized  
Dimensions:  56x51x39 mm / 2.2x2.0x1.5 inches  
Weight:  104 Grams / 3.7 Ounces  
Origin:  Mined in Princess Sodalite Mine, Bancroft, Ontario, Canada