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Gemtype Color Shape Weight Size Date Clarity Price Origin
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ID: 3259481 pcs
3.53ct Prehnite
9.38 x 8.38 x 5.88mm
USD 9.53
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ID: 3682242 pcs
3.41ctw Prehnite
7.14 x 4.35mm
USD 16.91
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ID: 3196821 pcs
3.18ct Prehnite
11.04 x 9.19 x 4.78mm
USD 6.36
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ID: 4186011 pcs
5.65ct Prehnite
16.71 x 10.95 x 5.65mm
USD 8.48
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ID: 3765971 pcs
2.89ct Prehnite
9.19 x 7.82 x 4.84mm
USD 17.02
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ID: 3435801 pcs
3.54ct Prehnite
10.44 x 7.71 x 6.50mm
USD 8.85
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ID: 4189001 pcs
4.86ct Prehnite
14.37 x 10.28 x 5.44mm
USD 7.29
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ID: 3759152 pcs
3.82ctw Prehnite
8.12 x 6.97 x 3.92mm
USD 22.42
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ID: 3676041 pcs
2.95ct Prehnite
10.58 x 6.67 x 5.35mm
USD 14.63
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ID: 3896222 pcs
2.22ctw Prehnite
7.52 x 5.80 x 3.35mm
USD 11.10
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ID: 3196871 pcs
2.97ct Prehnite
10.78 x 7.62 x 5.24mm
USD 5.94
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ID: 4182721 pcs
6.53ct Prehnite
13.82 x 10.63 x 7.75mm
USD 9.80
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ID: 2187801 pcs
9.56ct Prehnite
15.78 x 12.07 x 8.68mm
USD 43.02
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ID: 3766622 pcs
4.16ctw Prehnite
8.69 x 7.80 x 3.80mm
USD 24.50
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ID: 3595651 pcs
1.73ct Prehnite
7.97 x 5.76mm
USD 8.65
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ID: 4075754 pcs
5.87ctw Prehnite
7.71 x 5.79 x 4.29mm
USD 9.16
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ID: 4184482 pcs
12.00ctw Prehnite
16.57 x 10.95 x 5.69mm
USD 18.00
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ID: 3687971 pcs
3.64ct Prehnite
10.49 x 8.51 x 5.23mm
USD 17.91
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ID: 4186305 pcs
22.23ctw Prehnite
15.20 x 9.77 x 5.23mm
USD 33.34
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ID: 2716111 pcs
8.84ct Prehnite
14.00 x 8.33mm
USD 39.78
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ID: 3767591 pcs
2.80ct Prehnite
10.06 x 7.31 x 4.73mm
USD 23.97
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Prehnite
Prehnite, a form of calcium aluminum silicate, has a vitreous to pearly luster. Affordably priced for its size, with a Mohs hardness of 6 to 6.5, Prehnite makes distinctive and interesting jewelry.

Typically found in yellow-green or brown-yellow, Prehnite is for the gem lover who likes something unusual. Until recently, this was a rare gemstone, but new deposits have made it more available.

Prehnite is said to encourages composure, forgiveness and acceptance and is excellent for meditation. Prehnite also helps sufferers of claustrophobia.

Prehnite was named after a Dutch mineralogist, Colonel von Prehn. Deposits are found in Australia, China, Scotland, South Africa and the USA.
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart