11 of 466 products
11 of 466 products
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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 black Biotite crystal book from the Calcite Vein-Dikes of the Grenville Geological Province Ontario, Canada. This specimen is a great example of both the classic crystal shape and attractive dark coloration.
Biotite is rarely considered a valuable mineral specimen, but it can accompany other minerals and compliment them. In Bancroft, Ontario, Biotite forms large crystals with green apatite and hornblende. Single large plates or "books" of biotite can grow to considerable size and can make impressive mineral specimens.
Stand not included.
Name: Biotite Mica
Specimen Size: Large Cabinet-Sized
Dimensions: 124x70x4 mm / 4.9x2.7x0.1 inches
Weight: 45 Grams / 1.6 Ounces
Origin: Ontario, Canada
This is a beautiful, black Biotite crystal book from Córdoba. Spain. This biotite has a classic crystal shape and attractive dark coloration.
Biotite is rarely considered a valuable mineral specimen, but it can accompany other minerals and compliment them. In Bancroft, Ontario Biotite forms large crystals with green apatite and hornblende. Single large plates or "books" of biotite can grow to considerable size and can make impressive mineral specimens.
Name: Biotite Mica
Specimen Size: Large Cabinet-Sized
Dimensions: 111x58x20 mm / 4.4x2.3x0.8 inches
Weight: 126 Grams / 4.4 Ounces
Origin: Córdoba, Spain
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: 51x24x36 mm / 2.0x0.9x1.4 inches
Weight: 43.7 Grams / 1.5 ounces
Origin: Mined in Minas Gerais, Brazil
This is a beautiful black Biotite crystal book from the Calcite Vein-Dikes of the Grenville Geological Province Ontario, Canada. This specimen is a great example of both the classic crystal shape and attractive dark coloration.
Biotite is rarely considered a valuable mineral specimen, but it can accompany other minerals and compliment them. In Bancroft, Ontario, Biotite forms large crystals with green apatite and hornblende. Single large plates or "books" of biotite can grow to considerable size and can make impressive mineral specimens.
Stand not included.
Name: Biotite Mica
Specimen Size: Large Cabinet-Sized
Dimensions: 141x72x2 mm / 5.5x2.8x0.08 inches
Weight: 46.8 Grams / 1.6 Ounces
Origin: Ontario, Canada
$31.97 CAD
Unit price perThis is a well-formed albite that shows very well with its white cubic shiny crystal and good luster and translucence. There Mica has grown on the side and back of the crystal. Comes mounted in a Perky display box.
Product Name: Natural Mica on Albite Crystal
Specimen Size: Thumbnail-Sized
Dimensions: 25x27x22 mm / 1.0x1.1x0.9 inches Specimen
35x33x33 mm / 1.4x1.3x1.3 inches Box
Weight: 39.6 Grams / 1.4 Ounce (incl Box)
Origin: Mined in Palermo No. 1 Mine, N. Groton, New Hampshire
$30.40 CAD
Unit price perThe specimen is in excellent condition, shows very well and is truly spectacular.
Name: Biotite Mica & Apatite Crystals
Specimen Size: Cabinet-Sized
Dimensions: 89x70x57 mm / 2.75x2x0.9 inches
Weight: 121.72 Grams / Ounces
Origin: Mined in Tory Hill, Ontario
$79.99 CAD
Unit price perThis spectacular rock specimen consists of alternating layers of light blue-green amazonite and light grey smoky quartz topped by a biotite mica (muscovite) crystal. This special material is found in proximity of pegmatite melts to the surrounding country rock and is the result of quick cooling of the melt.
The term graphic originates from the Greek word Graphos or the Latin word Graphus which means to write. It denotes the script-like appearance that resembles cuneiform or runic writings where the darker, glassy quartz appears as letters or characters written on a lighter or whitish feldspar groundmass. This top specimen has it all and is in great condition. Will mesmerize you for hours examining all angles of this fantastic specimen. Would be an amazing addition to any new or existing collection.
Name: Graphic Granite of Amazonite, Smoky Quartz and Mica Crystal
Specimen Size: Large Cabinet-Sized
Dimensions: 143x106x67 mm / 5.6x4.2x2.6 inches
Weight: 989 Grams / 2 Lbs 2 Ounces
Origin: Mined in Western Quebec Canada
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: 47x30x39 mm / 1.8x1.2x1.5 inches
Weight: 51.4 Grams / 1.8 ounces
Origin: Mined in Minas Gerais, Brazil
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: 54x37x20 mm / 2.1x1.5x0.8 inches
Weight: 38.7 Grams / 1.4 ounces
Origin: Mined in Minas Gerais, Brazil
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: 48x34x32 mm / 1.9x1.3x1.2 inches
Weight: 55.8 Grams / 2 ounces
Origin: Mined in Minas Gerais, Brazil