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Dumortierite Rough
Dumortierite is often used in place of lapis lazuli. Hence, its nickname as "poor man's lapis". California Dumortierite is often incorrectly called "Desert Lapis". However, dumortierite is an excellent lapidary stone in its own right. We have two varieties of dumortierite, the well known dark blue/purple material from California and the now rare medium-blue material from South Africa. Dumortierite polishes best with diamond and aluminum oxide. Mohs hardness is approximately 7.
Dumortierite Rough (Dark Purple-Blue) - $6.75/pound
Locality: California


Sample of Dumortierite Rough from California
Item Number
Description
Weight
Price
Dumortierite
Rough #1
 Measures approximately 10 " x 5" x 3-3/8 to 1/2" thick.
11.25 pounds
$75.94
Dumortierite
Rough#2
 Measures approximately 6" x 5-1/2" x 3-1/2 to 1-1/2" thick.
10.05 pounds
$67.84
Dumortierite
Rough#3
 Measures approximately 6-3/4" x 6-3/4 to 4-1/2" x 2-3/8" thick.
8.82 pounds
$59.54
Dumortierite
Rough#4
 Measures approximately 5-1/2" x 4-1/2" x 3-1/2 to 1" thick.
6.00 pounds
$40.50
Dumortierite
Rough#5
 Measures approximately 5-1/2" x 4 to 2-1/4" x 2-3/4 to 1-1/4" thick.
5.08 pounds
$34.29
Dumortierite
Rough#6
 Measures approximately 5-1/2" x 3-1/2" x 2-3/4 to 1/2" thick.
4.66 pounds
$31.46
Dumortierite
Rough#7
 Measures approximately 6-1/2" x 3 to 2" x 1-7/8 to 3/4" thick. SOLD
3.10 pounds
$20.93
Dumortierite (Medium-Blue) - $16.00/pound
Locality: South Africa		  


Sample of Dumortierite Rough from South Africa
Finished stone made from South African Dumortierite.
Item Number
Description
Weight
Price
Dumortierite
Rough#8
 Triangular shape measures approximately 4-1/2 " x 3-1/2" x 2-1/2to 1-1/2" thick.
4.77 pounds
$76.32
Dumortierite
Rough#9
 Triangular shape measures approximately 2-7/8 " x 2-1/2" x 3 to1-1/2" thick.
2.46 pounds
$39.36
Dumortierite
Rough#10
 Measures approximately 3-1/4 " x 2-1/2" x 1-1/2" thick.
1.79 pounds
$28.64
Dumortierite
Rough#11
 Triangular shape measures approximately 4" x 3" x 2 to 5/8" thick. SOLD
1.77 pounds
$28.32
Dumortierite
Rough#12
 Triangular shape measures approximately 3-1/4 " x 3" x 1-1/2" at the thickest point.
1.18 pounds
$18.88
Dumortierite
Rough#13
 Triangular shape measures approximately 4-1/2 " x 2-3/4 to 1-3/8" x 1-1/4" at the thickest point.
0.93 pounds
$14.88
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