Provenite

Vanderburg Mine (Sickler)

MineDraft data

33.3762° N, 117.0367° W · ± 1 km

Albite and Morganite from California, United States, with photos of specimens from this locality.

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Minerals found here

AlbiteMorganite

Albite at Vanderburg Mine (Sickler)

Schorl and quartz in albite from the Vanderburg Mine, Pala.
Schorl and quartz in albite from the Vanderburg Mine, Pala.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Second view of schorl and quartz in albite, Vanderburg Mine.
Second view of schorl and quartz in albite, Vanderburg Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
NaAlSi₃O₈
Morphology
Albite matrix enclosing schorl and quartz
Typical size
Specimen about 10 cm
Associated minerals
Schorlquartz
Availability
Unknown

Sources: SRC-523 SRC-557

About Albite →

Morganite at Vanderburg Mine (Sickler)

Vivid pink morganite crystal of 9 cm on cleavelandite from the Vanderburg Mine, Pala.
Vivid pink morganite crystal of 9 cm on cleavelandite from the Vanderburg Mine, Pala.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Be3Al2Si6O18
Morphology
Large prismatic crystal on cleavelandite matrix
Typical size
Crystal about 9 cm
Color / luster
Vivid pink, gemmy, lustrous
Associated minerals
Albite (cleavelandite)
History
Old-time specimen; morganite is rare at this mine

Sources: SRC-266 SRC-841 SRC-850

About Morganite →

Geology of the locality

Setting
Gem pegmatite on Hiriart Mountain, Pala district (MRDS commodities: gems, silica).
Region
California
Country
United States

Coordinates from the USGS MRDS record 'Sickler Group'; Sickler is one of the alias names of the Vanderburg (Naylor-Vanderburg) mine on collector labels.

Sources: SRC-525

Sources

  1. SRC-525 · Database
    Mineral Resources Data System (MRDS), WFS feature query - Pala district, San Diego CountyU.S. Geological Survey · USGS
  2. SRC-523 · Book
    Handbook of Mineralogy - AlbiteAnthony, J.W.; Bideaux, R.A.; Bladh, K.W.; Nichols, M.C. · 2001 · Mineral Data Publishing / Mineralogical Society of America
  3. SRC-557 · Website
    File:Albite-Quartz-Schorl-ch07a.jpgRobert M. Lavinsky · Wikimedia Commons
  4. SRC-266 · Book
    Handbook of Mineralogy - BerylAnthony, J.W.; Bideaux, R.A.; Bladh, K.W.; Nichols, M.C. · 2001 · Mineralogical Society of America / Mineral Data Publishing
  5. SRC-841 · Website
    Morganite Value, Price, and Jewelry InformationArem, J.E.; Clark, D.; Smigel, B. · 2025 · International Gem Society
  6. SRC-850 · Website
    File:Beryl-230535.jpg (Wikimedia Commons)Robert M. Lavinsky · Wikimedia Commons

Draft data from the Provenite workbook. Check entries against the cited sources before relying on them. Photos are open-licence images from Wikimedia Commons; the author and licence are given with each photo.