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London Pegmatite Specimens

Tuesday, 30 July 2024 01:00 PM

London wrote the book called "PEGMATITES". It is the most in-depth book on the geology and mineralogy of pegmatites to-date. This Special Edition will include specimens used as illustrations in London's book. If you like pegmatites do not miss this one!

SOLD

Albite

with Beryl & Columbite - #DL63084

Details
Data
Provenance
Resources

Locality: Tanco pegmatite, Bernic Lake, Manitoba, Canada
Formula: NaAlSi₃O₈
Availability: Sold
Size: 12 x 9.5 x 4 cm - Cabinet
Tagged: pegmatite mineral

Light blue granular Albite with small, white Beryl crystals and minor Columbite.

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: Dr. David London 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

with Muscovite contact with border zone - #DL63815

Details
Data
Provenance
Resources

Locality: Harding mine, Taos Co., New Mexico, United States
Formula: NaAlSi₃O₈
Availability: Sold
Size: 18 x 10 x 8 cm - Cabinet
Tagged: pegmatite mineral
Special Info: Illustrated in London's book "Pegmatites"

This specimen from the border zone represents an example of wall-rock interaction with the pegmatite solution as it was injected into the country rock. The white portion is the pegmatite and is composed of Albite, Muscovite, Beryl. The black portion is the wall rock, which through metasomatism, was altered to Schorl tourmaline.

The specimen is illustrated in "Pegmatites" on page 123 Fig. 7-12d.

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: Dr. David London Collection
Special Info: Illustrated in London's book "Pegmatites"

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

SOLD

Amblygonite

#DL60698

Details
Data
Provenance
Resources

Locality: Tanco pegmatite, Bernic Lake, Manitoba, Canada
Formula: LiAlPO₄F
Availability: Sold
Size: 7.5 x 6 x 4.5 cm - Sm Cabinet
Tagged: pegmatite mineral , lithium
Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Illustrated in London's book "Pegmatites"

Somewhat glassy and yellow massive Amblygonite. Yellow Amblygonite is uncommon. It is shown on page 60, Fig. 4-12 of London's book called "Pegmatites".