Minerals

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. 

Phantom quartz is a variety of quartz, or "rock crystal", that forms over pre-existing crystals. The included crystal is visible due to some variation in composition making the boundary of the included crystal visible. Such crystals display the outlines of numerous smaller crystals, known as phantoms.  Great crystal to acquire.

Prehnite is a green to yellowish-green colored mineral that belongs to the phyllosilicate family. It is composed of calcium, aluminum, and silicate, with traces of iron, magnesium, and other elements. Prehnite crystals have a unique pearly luster and can form in a variety of shapes, including tabular, prismatic, and stalactitic formations.

Prehnite is believed to have a calming effect on the mind and emotions, promoting relaxation and inner peace. It is also said to be a stone of unconditional love, compassion, and healing.

Name: Prehnite and Graphite Crystal Clusters (3 Piece Lot)
Specimen Size:   Thumbnail-Sized
Dimensions: 17x15x9 - 20x18x13 mm / 0.7x0.6x0.3 - 0.8x0.7x0.5 inches
Weight: 13.4 Grams (Total) / 0.47 Ounces (Total)
Origin: Mined in Merelani Hills, Arusha, Tanzania

This is a natural "Ball Peen" Mica specimen from Branchville, Connecticut.  Instead of forming flat, book-like sheets as muscovite usually does, mica specimens from the Branchville Mica Mine develop a rounded, bulbous termination resembling the rounded end of a ball-peen hammer, from which its name is derived.

The Branchville Mica Mine, which has been inactive since 1944 and is mostly flooded, is one of the most historically important mineral localities in the United States. Opened in the 1870s as a mica mine, it quickly became internationally recognized for its scientific significance after Yale University mineralogists discovered an exceptional variety of rare minerals within its pegmatite. The quarry served as the type locality for several newly identified mineral species and played a key role in advancing the study of pegmatites and mineral formation. It is especially famous for producing the distinctive "ball-peen" muscovite crystals, along with fine specimens of beryl, spodumene, and other rare minerals. 

This classic specimen from Connecticut will come protected in a Perky Box.   The box will show its age but is just another way to show how old the specimen is.  The original label when the specimen was catalogued is also a nice touch.

Name:  Mica
Specimen Size:  Miniature-Sized  
Dimensions:  33x19x16 mm / 1.3x0.7x0.6  
Weight:  10.9 Grams /  0.4 Ounces
Origin: Mined in Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA

This rarely offered specimen shows a group of minerals and crystals from the Aris Querries in Namibia . The grouping includes multiples of Makatite white fibres, brown to green fibres of tupperssautsiatite, black neptunite, dark brown bastneasite and pink villiaumite on host rock matrix.  

Name: Makatite Crystal Cluster
Specimen Size:  Cabinet-Sized
Dimensions: 45x31x15 mm / 1.8x1.2x0.6 inches
Weight: 25.2 Grams / 0.9 oz
Origin: Aris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia 

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:  52x45x21 mm / 2.0x1.8x0.8 inches  
Weight:  36.16 Grams / 1.3 ounces    
Origin: Mined in Minas Gerais, Brazil  

Heulandite is one of the most common and well known members of the Zeolite Group. It has a nice pearly luster and lovely colored hues. It forms wonderfully complex and quite unique crystals and is often associated with other rare and beautiful minerals. 

Name: Heulandite cluster Crystal
Specimen Size:  Large Cabinet-Sized
Dimensions:  101x61x52 mm / 4.0x2.4x2.0 inches
Weight: 143 Grams /  5.0 Ounces 
Details: Mined in Jalgaon, Maharashtra, India

Heulandite is one of the most common and well known members of the Zeolite Group. It has a nice pearly luster and lovely colored hues. It forms wonderfully complex and quite unique crystals and is often associated with other rare and beautiful minerals. 

Name: Heulandite cluster Crystal
Specimen Size:  Miniature-Sized
Dimensions:  51x28x26 mm / 2.0x1.1x1.0 inches
Weight: 16.23 Grams / 0.5 Ounces 
Details: Mined in Jalgaon, Maharashtra, India

This is a botryoidal growth of dark-green Conichalcite on matrix.  This piece originates from the 40' Level of the historic Gold Hill Mine in Tooele County, Utah, a locality long recognized for producing a wide variety of copper and arsenate minerals. Although the district was once highly productive, specimens from the classic workings have become increasingly difficult to obtain since the mine’s closure in 1945.

Name: Conichalcite
Specimen Size:  Miniature-Sized
Dimensions:  46x34x24 mm / 1.8x1.3x0.9 inches
Weight:  34 Grams / 1.2 ounces
Origin: Mined in Gold Hill Mine, Clifton Mining District, Tooele County, Utah, USA

This is a 20.0tcw lot of beautiful natural purple-yellow bi-color Ametrine from Bolivia.  There are 6 unheated and untreated pieces that range in size from approximately 8x6 - 12x11 mm.  This is the exact lot that you will receive.  

Ametrine is a gemstone that is a combination of amethyst and citrine, which are both varieties of quartz. It displays a beautiful blend of purple and yellow colors due to the presence of iron impurities. The name "ametrine" is derived from the combination of "amethyst" and "citrine."  Ametrine is relatively rare compared to other gemstones and is mainly found in Bolivia, although it can also be found in smaller quantities in Brazil, Uruguay, and India.

Ametrine combines the calming and spiritual properties of amethyst with the energizing and uplifting qualities of citrine. This combination is thought to promote balance, harmony, and mental clarity. Ametrine is also associated with creativity, confidence, and overall well-being.

This is a 32.8tcw lot of beautiful rough emeralds.  There are 16 pieces that range in size from approximately 7-10 x 5-9 mm.  This is the exact lot that you will receive.  

Ancient Romans associated the emerald with Venus, the goddess of love and beauty.   They firmly believed that this stone's purity was so strong that no evil presence could exist around it.

Emerald is connected to the heart chakra.  It is said to bring about great love and promote happiness and faithfulness in a relationship.