Mineral specimens

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Aquamarine With Negative Tourmaline from Pakistan. 1 Piece. Large aquamarine crystal with etch figures at both ends. The hydrofluoric acid causing these figures also etched an included, large tourmaline crystal out of the aquamarine. The result is a surface-reaching "negative crystal", a cavity in the shape of the tourmaline crystal which even shows the tourmalines typical striations!
Aquamarine With Negative Tourmaline

Large aquamarine crystal with etch figures at both ends. The hydrofluoric acid causing these figures also etched an included, large tourmaline crystal out of the aquamarine. The result is a surface-reaching "negative crystal", a cavity in the shape of the tourmaline crystal which even shows the tourmalines typical striations!

cut: natural crystal
origin: Pakistan, Gilgit, Hunza Valley
treatment: Untreated
clarity: very distinct inclusions

1 piece
28 x 22 x 18 mm

600.00 €

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Sapphire from Sri Lanka. 1 Piece. Weight 23.68cts (4.73g)
Sapphire

Weight 23.68cts (4.73g)

cut: natural crystal
origin: Sri Lanka
treatment: Untreated
clarity: very, very distinct inclusions

1 piece
28.8 x 13.6 x 8.2 mm

72.00 €

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Spinel from Sri Lanka. 1 Piece. 4.28cts, not facettable
Spinel

4.28cts, not facettable

cut: natural crystal
origin: Sri Lanka
treatment: Untreated
clarity: very, very distinct inclusions

1 piece
10 x 8.3 x 7.6 mm

21.60 €

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Spinel from Sri Lanka. 1 Piece. Rare blue spinel, rough weight 5.13cts, not facettable
Spinel

Rare blue spinel, rough weight 5.13cts, not facettable

cut: natural crystal
origin: Sri Lanka
treatment: Untreated
clarity: very, very distinct inclusions

1 piece
10.1 x 8.3 x 8 mm

39.60 €

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