mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Mineralpedia Details for Topaz

Reset

Topaz

Topaz

Named for an island in the Red Sea that was referred to as Topazios or Topazion, and is called St. John’s Island today. The name of the island itself refers to its difficulty to be found, as Topazion means “to seek” in Greek. The island was not known for the mineral Topaz, however, and any reference to Topaz in ancient texts actually translates to the yellow green olivine variety peridot.  Topaz can befound in veins and cavities within granites, pregmatites, rhyolites and is formed from hot, volatile, hydrothermal fluids. It can also be found in high-grade metamorphic and as a detrital mineral. It can be found in thousands of localities worldwide. Topaz can, albeit rarely, fluoresce under ultraviolet light. Topaz from certain localities must be kept away from sunlight, such as the brown variety from Baldface Mountain, New Hampshire, USA and the sherry-colored crystals from The Cove, Utah, USA, as the color may fade with exposure.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/topaz.pdf

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
WebMineral
View Topaz 
Mindat
View Topaz 

Topaz from Katlang, near Mardan, NWFP, Pakistan

Topaz
            from Katlang, near Mardan, NWFP, Pakistan Sherry colored, gemmy and highly lustrous, terminated crystal to 2.5cm.
Click thumbnail images for larger view.

Topaz from Villa Garcia, Zacatecas, Mexico

Topaz
            from Villa Garcia, Zacatecas, Mexico

A nice thumbnail size group of Topaz, with I suspect rutile inclusions since there are thousands of minute, acicular dark red or black crystals surrounding the exterior of the Topaz and on the matrix. The longest Topaz is doubly terminated and 1.7cm.

Click thumbnail images for larger view.

Topaz from Altenberg, Erzgebirge, Saxony, Germany

Topaz
            from Altenberg, Erzgebirge, Saxony, Germany

Hard yellow replacement feldspar by Topaz. It is locally called pyknite and is associated with Fluorite, Quartz, and a green mica.

Click thumbnail images for larger view.

Topaz from Devil's Den, Boise Co., Idaho, United States

Topaz
            from Devil's Den, Boise Co., Idaho, United States

A complexly crystallized sherry colored Topaz crystal showing many faces. It is a floater.

Click thumbnail images for larger view.

Topaz from Upper Cramer Lake, Custer Co., Idaho, United States

Topaz
            from Upper Cramer Lake, Custer Co., Idaho, United States

Sweet little thumbnail with two terminated crystals to 2.5cm.

A colorless, terminated crystal of Topaz with minor Siderite on the termination. Collected by Chris van Laer in 1989.

This is an excellent Topaz crystal group collected by the late Chris van Laer in 1989. It is a group of four colorless crystals with good luster and striations, and each nicely terminated. It was professionally reconstructed by Chris and shows no sign of it.

Click thumbnail images for larger view.

Topaz from Edna Lake, Boise Co., Idaho, United States

Topaz
            from Edna Lake, Boise Co., Idaho, United States

This is a sharp group of Topaz crystals with a light goldish color, clear and all nicely terminated with a little bit of 1-2mm Spessartine crystals. It was collected by Jack Zektzer in 1984 and purchased by Chris van Laer. An excellent specimen.

Click thumbnail images for larger view.

Topaz from Ouro Preto, Minas Gerais, Brazil

Topaz
            from Ouro Preto, Minas Gerais, Brazil

Prismatic orange "imperial" Topaz crystal, terminated to 2.8cm.

Click thumbnail images for larger view.

Topaz from Fohl picnic area, Pierce City dist., Clearwater Co., Idaho, United States

Topaz
            from Fohl picnic area, Pierce City dist., Clearwater Co., Idaho, United States
Special Info
Collected by Chris val Laer circa 1979

Waterclear very nice complex crystal of Topaz.

Click thumbnail images for larger view.

Topaz from Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland

Topaz
            from Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland

A white, hard, porcellanous mass of Topaz. Comes with a University of Copenhagen tag.

Click thumbnail images for larger view.

Topaz from Virginia Lake, Boise Co., Idaho, United States

Topaz
            from Virginia Lake, Boise Co., Idaho, United States
Special Info
Chris van Laer collection

Colorless, striated Topaz crystal with a complex termination.

Click thumbnail images for larger view.

Topaz from Little Spangle Lake, Elmore Co., Idaho, United States

Topaz
            from Little Spangle Lake, Elmore Co., Idaho, United States

An outstanding combination and incredibly hard to obtain colorless Topaz with dark smoky Quartz. Both are nicely terminated with no damage. Excellent specimen.

Click thumbnail images for larger view.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2019 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map