Crystals & Minerals

Cubic and crystallized pyrite matrix with Marmatite and Quartz crystal cluster.

Some of the more important Colorado localities for specimens of well-crystallized pyrite include mines at cli- max, Gilman, Leadville, Rico, Ouray, Telluride, Creede, Alicante, Alice, and State Bridge. Specimens from each of these localities often have distinctive crystal habits and mineral associations.  The Eagle mine is probably best known for its pyritohedral Pyrite specimens. This cluster is a good representative Eagle mine Pyrite showing typical striated pyritohedra with sharp, lustrous faces plus some Marmatite opaque black iron-rich crystals.

This top specimen is in very good condition. Would be a beautiful addition to any new or existing collection.

Name: Pyrite with Marmatite and Quartz Crystal Cluster
Specimen Size:   Cabinet-Sized
Dimensions:   61x47x29 mm / 2.4x1.8x1.1 inches
Weight: 191.8 Grams / 6.8 oz
Origin: Mined in Gilman, Colorado, USA

Found in Orford Nickel mine, St-Denis-de-Brompton, Le Val-Saint-François RCM, Estrie, Québec, Canada which is famous for excellent specimens of diopside, green grossular (chrome-bearing), orange grossular and millerite.

We have for you a lustrous, striated diopside crystal partially coated with streaks of emerald-green chrome-bearing grossular crystals.  This is a very showy specimen that will display very well within your collection.

Name: Diopside with Grossular Crystal Cluster
Specimen Size:  Large Cabinet-Sized
Dimensions: 129x63x37 mm / 5.1x2.5x1.5 inches
Weight:   326.8 grams / 11.5 Ounces
Origin: Mined at Orford Nickel mine, St-Denis-de-Brompton, Le Val-Saint-François RCM, Estrie, Québec, Canada

This is a superb terminated Peruvian quartz crystals. This top specimen is in very good condition and would be a beautiful addition to any new or existing collection.

Quartz crystals are among the most abundant and well-known minerals on Earth. It belongs to the hexagonal crystal system, and typically forms six-sided prismatic crystals with a pointed termination. Its crystals can be colorless or exhibit a wide range of colors. The color variations are often due to the presence of impurities or trace elements during the crystal's formation. Quartz is transparent to translucent. 

Quartz is considered a “master healer.” It's said to amplify energy by absorbing, storing, releasing, and regulating it. It's also said to aid concentration and memory. Physically, clear crystals are claimed to help stimulate the immune system and balance out your entire body.

Quartz is also said to be a power gemstone that harmonizes and balances; enhancing energy and thoughts as well as purifying the spiritual, mental and physical. Quartz is associated with the crown chakra.

Name: Terminated Quartz Crystal Cluster
Specimen Size:   Miniature-Sized
Dimensions:   44x26x26 mm / 1.7x1x1 inches
Weight:  20 Grams / 0.7 oz
Origin: Mined in Peru

Sharp lustrous metallic crystals of tetrahedrite with small crystallized pyrite matrix and mangano calcite. This top specimen is in very good condition. Would be a beautiful addition to any new or existing collection.

Name: Tetrahedrite, Mangano Calcite, Quartz and Pyrite Crystal Cluster  
Specimen Size:   Miniature-Sized  
Dimensions: 28x23x35 mm / 1.1x0.9x1.4 inches  
Weight: 23.3 Grams / 0.8 oz  
Origin: Mined in Lima, Peru  

Cave calcite is not actually calcite, but aragonite which forms within caves, mines and moist areas that are rich in limestone. Formations occur as stalactites and stalagmites, typically as botryoidal or feathery branches.

Cave calcite appears in many colors ranging from clear, to milky white, and rusty oranges. These colors, in addition to their funky, tree-like formations, make cave calcite an exciting addition to any collection. The specimen is in good condition.

Product Name: Aragonite - Cave Calcite
Specimen Size:  Cabinet-Sized
Dimensions:   60x42x46 / 2.4x1.6x1.8 inches
Weight:   111.8 grams / 3.9 Ounces)
Origin: Arizona, USA

This is an amazing specimen of Hematite, or Specularite, crystals on a large hematite matrix from Egremont, Cumbria, England.  The entire top of the specimen is covered with Specularite crystals while the other side is botryoidal Hematite. The specimen is in very good condition.  Would be a nice addition to any new or existing collection.

Name: Hematite var. Specularite Crystal Cluster
Specimen Size:  Cabinet-Sized
Dimensions: 62x42x21 mm / 2.4x1.6x.8 inches
Weight: 82 Grams / 2.9 ounces
Origin: Mined in Ullcoats mine, Egremont, Cumbria, England

This is a stunning specimen of calcite cubes on mordenite druse.  The crystals are well defined and look beautiful together.

Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere. Calcite is the principal constituent of limestone and marble. 

Mordenite was first described in 1864 by Henry How. He named it after the small community of Morden, Nova Scotia, Canada, along the Bay of Fundy, where it was first found.  It is one of the most abundant zeolites and is found in volcanic rock such as rhyolite, andesite, and basalt. It is associated with other zeolites such as stilbite and heulandite.

Name: Calcite Cubes on Mordenite Druse
Specimen Size:  Large Cabinet-Sized
Dimensions: 228x152x127 mm / 9x6x5 inches
Weight: 3.43 KG / 7 lbs 9 ounces 
Details: Mined in Nashik, India

This is a beautiful combination of Apophyllite, Stilbite and Calcite on Chalcedony Druse. It is a large specimen at over 2 kg and has many double terminated crystals.

Stilbite is a zeolite mineral appreciated for its delicate crystal formations and pastel hues, ranging from colorless to white, yellow, pink, and peach.  It forms distinctive tabular crystals with a bowtie or butterfly shape and exhibits a vitreous to pearly luster. 

One of the distinguishing features of apophyllite is its ability to form well-defined crystals with a pyramid-like shape. These crystals often exhibit a prismatic or pseudo-cubic habit and have a vitreous luster. Apophyllite is transparent to translucent and is commonly found in colorless or white varieties, although it can also occur in shades of green, pink, yellow, or brown.

Chalcedony is a microcrystalline Quartz found in many different colours and patterns.  It has a number of crystals grouped under it many of which are very familiar, including Agate, Carnelian, Chrysoprase, Aventurine, Jasper and Onyx.

Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere. Calcite is the principal constituent of limestone and marble. This huge crystal specimen would be a beautiful addition to any new or existing collection.

Name: Apophyllite, Stilbite and Calcite on Chalcedony Druse
Specimen Size:  Large Cabinet-Sized
Dimensions: 222x178x95 mm / 8.75x7x3.75 inches
Weight: 2.46 KG / 5 lbs 6 ounces
Origin: Mined in Jalgaon, India

Gyrolite often forms nodular aggregates that can appear glassy, dull or even fibrous. The aggregate nodules often accompany many fine and rare minerals such as Apophyllite and Okenite plus many of the Zeolites. Looks very nice on Prehnite! Would be a beautiful addition to any new or existing collection.

Name: Gyrolite spheres with Apophyllite on Prehnite Druze
Specimen Size:  Large Cabinet-Sized
Dimensions: 171x89x70 mm / 6.75x3.5x2.75 inches
Weight: 979 Grams / 2 lbs 2 ounces
Origin: Mined in Mumbai (Bombay), India