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Natural Cumpas Turquoise Rough
Turquoise is a copper-based mineral (hydrated copper aluminum phosphate). Turquoise polishes well with diamond, tin oxide or green rouge.

Natural Cumpas Turquoise Rough - Fine Blue Color, Medium-Large Size
- $350/pound (~$0.77/gram) SALE: $250/pound (~0.55/gram)
Locality: Cumpas, Sonora, Mexico

This material is a fine light blue with little to no brown matrix and some "waterwebbing"; a white version of spiderwebbing.


Cabochon cut from this material.
Fine Blue Natural Cumpas Turquoise from Sonora, Mexico at $350/pound
 
Item Number Description Weight Price SALE
Price
Natural Cumpas#1
Triangular shape measures approximately 3" x 3" x 2-1/2 to 1-3/8" thick. SOLD
1.2800
pound
$448.00
$320.00
Natural Cumpas#2
Triangular shape measures approximately 2-3/4" x 2-1/2" x 1-3/4 to 3/4" thick. SOLD
0.5400
pound
$189.00
$135.00
Natural Cumpas#3
Measures approximately 2-1/2" x 1-3/4" x 1-3/8 to 3/4" thick. SOLD
0.3952
pound
$18.32
$98.80
Natural Cumpas#4
Measures approximately 2-1/2" x 1-3/8" x 1-1/8" thick. SOLD
0.3171
pound
$110.99
$79.28
Natural Cumpas#5
Triangular shape measures approximately 1-7/8" x 1-1/2" x 1-1/2 to 1/2" thick. SOLD
0.2226
pound
$77.91
$55.65
Natural Cumpas#6
Measures approximately 1-5/8" x 1-1/2" x 5/16" thick.
0.2153
pound
$75.36
$53.83
Natural Cumpas#7
Measures approximately 1-1/4" x 1-1/8" x 1" thick. SOLD
0.0997
pound
$34.90
$24.93
Natural Cumpas#8
Triangular shape measures approximately 2" x 1-3/16" x 5/8 to 3/8" thick. SOLD
0.0882
pound
$30.87
$22.05
Natural Cumpas#9
Triangular shape measures approximately 2" x 1" x 15/16 to 1/2" thick. SOLD
0.1065
pound
$37.28
$26.63
Natural Cumpas#10
Triangular shape measures approximately 1-7/8" x 1-3/8" x 1-3/16" thick at a peak.
0.1534
pound
$53.69
$38.95
Natural Cumpas#11
Measures approximately 1-1/4" x 1" x 5/8" thick at a peak.
0.0638
pound
$22.33
$15.95
Natural Cumpas#12
HUGE PIECE!!! Triangular shape measures approximately 8-1/2" x 6-1/2" x 4-3/8" thick at a peak. RESERVED
9.95
pounds!
$3,482.50
$2,487.50
Natural Cumpas#13
Triangular shape measures approximately 1-5/8" x 1-1/4" x 1-1/8" thick at a peak. SOLD
0.1124
pound
$39.34
$28.10
Natural Cumpas#14
Triangular shape measures approximately 1-1/2" x 1-1/4" x 3/4" thick. SOLD
0.0746
pound
$26.11
$18.65
Natural Cumpas#15
Triangular shape measures approximately 1-5/8" x 1-1/4" x 1-3/8 to 1/2" thick.
0.1117
pound
$39.10
$29.25
Baja Stabilized Turquoise   Battle Mountain, Nevada Stabilized Turquoise   Blue Ice Stabilized Turquoise   Campitos Natural Turquoise   Campitos Stabilized Turquoise   Natural Chalcosiderite   Chinese Stabilized Turquoise   Chinese Stabilized Spiderweb Turquoise   Cumpas Natural Turquoise   Cumpas Stabilized Turquoise   Kingman Stabilized Turquoise   Mixed Stabilized Turquoise   Nacozari Enhanced Turquoise   Nacozari Natural Turquoise   Nacozari Stabilized HUGE Turquoise   Nacozari Stabilized and Polished Turquoise   Sonoran Blue Natural Turquoise   Treatments for Turquoise  
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