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ASBESTIFORM MINERALS

  
NEW ACQUISITIONS


A.

B.

RIEBECKITE inclusions in DANBURITE
Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia
Blue-gray, hair-like Riebeckite inclusions within the Danburite crystals (ID by x-ray analysis) have tinted the Danburite crystals a light smoky gray color.  Specimens are very sharp, complete double terminated single crystals of Danburite with pale smoky gray color hair-like inclusions of Riebeckite, without matrix. 

 

 


MI--1204

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

A.

3/4

1/2

3/8

$ 12.50

B.

7/8+

1/2

3/8

$ 15.00

 


A.

B.
C.
D.

RIEBECKITE Var. Crocidolite “Tigereye”
Asbestos Mountains, North of the Orange River, West Griqualand, Northern Cape Province, Republic of South Africa
Tigereye is the name given by lapidaries to silicified Crocidolite.  The material is very tough and compact, rather than hairy or fibrous, typical of Crocidolite from other localities.  The variation in the color of the South African Tigereye ranges from golden to brown, blue-golden (known in gem cutting circles as “Hawk’s Eye” because of the blue color), to brick red, and the latter seems to be the rarest.   Items A and B are blue-golden in color, and item C is red Tigereye, actually a brick red color.  Items D through G are the more typical, best known golden color Tigereye with light chocolate brown colored bands.  All are unpolished slices with excellent chatoyancy, suitable for reference collection of asbestiform minerals, or for fashioning into cabochons.  These specimens were collected ~ 15 to 20 years ago, from a locality which is no longer in production.  Specimens are not sold by the gram – the gram weights are given simply as a measure of size.
 

 MI-1208

WEIGHT
(GRAMS)

SPECIMEN SIZE
(INCHES)

SPECIMEN
PRICE

A.

9.55

1 3.8

1

1/4

SOLD

B.

13.40

1 1/2

1 1/4

1/4

$  12.00

C.

14.20

1 3/4

1 1/2

1//4-

SOLD

D.

12.50

1 3/4

1 3/8

1/4-

$  10.00

E.

28.20

2 3/8

1

1/4+

SOLD

F.

69.75

3 7/8

1 1/4

1/4+

$  35.00

G.

71.20

3 3/4

1 1/4

1/4+

SOLD


E.

F.

G.


NOTES: 
All specimens are natural, not processed in any way from their original form. 
If you need other asbestiform minerals not described on this list please call, FAX, or email and send us your list of requirements. 

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