Systematic Minerals of the Feldspars & Feldspathoids Groups

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Albite

var. pericline - #PD46624

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Data
Provenance
Resources

Locality: South Tyrol, Trentino, Italy
Formula: NaAlSi₃O₈
Availability: Sold
Size: 10 x 5 x 4 cm - Cabinet

Pericline crystal group with white glossy crystals to 2cm. The crystals are elongated by twinning on the b-axis with long inclined faces along the prism.

Albite

Formula: NaAlSi₃O₈
Crystal System: Triclinic
Crystal Habit: Blocky, Striated, Granular
Cleavage: Perfect, Good, None
Luster: Vitreous (Glassy)
Color: white, gray, greenish gray, bluish green, gray
Streak: white
Class: Triclinic - Pinacoidal
Fracture: Uneven
Hardness: 7

Collection: Phillips Collection

Mineralpedia: View Albite
On Dakota Matrix: Previously Sold Albite
On Dakota Matrix: Other Available Albite
WebMineral: View Albite
Mindat: View Albite

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Albite

var. andesine - #PD47318

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Data
Provenance
Resources

Locality: Cape Grant, Victoria, Australia
Formula: NaAlSi₃O₈
Availability: Sold
Size: 4 x 2.5 x 3 cm - Miniature

Andesine is a variety of Albite composed of 50-70% Albite and 30-50% Anorthite. It is of a late a fine red gem but can be yellow and green, obviously this specimen is not a gem. Associated with this Andesite are black crystal plates of ilmenite.

Albite

Formula: NaAlSi₃O₈
Crystal System: Triclinic
Crystal Habit: Blocky, Striated, Granular
Cleavage: Perfect, Good, None
Luster: Vitreous (Glassy)
Color: white, gray, greenish gray, bluish green, gray
Streak: white
Class: Triclinic - Pinacoidal
Fracture: Uneven
Hardness: 7

Collection: Phillips Collection

Mineralpedia: View Albite
On Dakota Matrix: Previously Sold Albite
On Dakota Matrix: Other Available Albite
WebMineral: View Albite
Mindat: View Albite

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Albite

var. oligoclase - #BM47320

Details
Data
Provenance
Resources

Locality: Commercial quarry, Crestmore, Riverside Co., California, United States
Formula: NaAlSi₃O₈
Availability: Sold
Size: 7 x 3.5 x 3.5 cm - Sm Cabinet

Colorless to light greyish white, glassy oligoclase with Diopsode and garnet.

Albite

Formula: NaAlSi₃O₈
Crystal System: Triclinic
Crystal Habit: Blocky, Striated, Granular
Cleavage: Perfect, Good, None
Luster: Vitreous (Glassy)
Color: white, gray, greenish gray, bluish green, gray
Streak: white
Class: Triclinic - Pinacoidal
Fracture: Uneven
Hardness: 7

Collection: McConlogue Collection

Mineralpedia: View Albite
On Dakota Matrix: Previously Sold Albite
On Dakota Matrix: Other Available Albite
WebMineral: View Albite
Mindat: View Albite

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Albite

var. cleavelandite - #PD47321

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Data
Provenance
Resources

Locality: Itinga, Minas Gerais, Brazil
Formula: NaAlSi₃O₈
Availability: Sold
Size: 5 x 4 x 3.5 cm - Miniature

Cleavelandite is white to colorless and platy variety of Albite found in pegmatites. Cleavelandite is usually found along the fringes or outer zones of the pegmatites.