Origin: Oregon, USA
Cabochon Size:
47.5mm x 39mm x 10.5mm
Weight: 21.5 grams
Price: $30.00
OB715
GEMMY COLORED
SMOKE OBSIDIAN
Origin: Chihuahua,
México
Cabochon Size:
38mm x 33.5mm x 6.5mm
Weight: 10.5 grams (rounded both sides) Price: $135.00
OB719
DEEP VELVET
GEM OBSIDIAN
Origin: Chihuahua,
México
Cabochon Size:
51mm x 21mm x 4mm
Weight: 5.3 grams
Price: $80.00
OB605
SILVER
SHEEN
FREEFORM CAB
Origin: Chihuahua,
México
Cabochon Size:
47mm x 23.5mm x 7mm
Weight: 9.6 grams
Price: $24.00
OB635
SPIDERWEB
OBSIDIAN
Origin: Chihuahua,
México
Cabochon Size:
35mm x 22.5mm x 8mm
Weight: 8.7 grams
Price: $12.00
OB709
MULTICOLOR
FIRE OBSIDIAN
Origin: Oregon, USA
Cabochon Size:
395mm x 29mm x 6.5mm
Weight: 8.3 grams
Price: $99.00
OB705
GOLD MAHOGANY
OBSIDIAN STONE
Origin: México
Cabochon Size:
28.5mm x 24.5mm x 6mm
Weight: 8.7 grams
Price: $22.00
OB655
TRANSPARENT
OBSIDIAN STONE
Origin: Oregon, USA
Cabochon Size:
42.5mm x 26mm x 8mm
Weight: 11.5 grams
Price: $15.00
OB718
GEMMY VELVET
OBSIDIAN
Origin: Chihuahua,
México
Cabochon Size:
47mm x 32mm x 4.5mm
Weight: 8.8 grams
Price: $40.00
OB661
PURPLE HAZE
OBSIDIANA
Origin: Oregon, USA
Cabochon Size:
43mm x 31mm x 10mm
Weight: 17.1 grams
Price: $20.00
OB596
SILVER SHEEN
FREEFORM CAB
Origin: Chihuahua,
México
Cabochon Size:
35.5mm x 25mm x 9mm
Weight: 9.0 grams
Price: $18.00
OB713
MULTI - FIRE
OBSIDIAN
Origin: Oregon, USA
Cabochon Size:
32.5mm x 24mm x 8mm
Weight: 7.6 grams
Price: $59.00
OB639
SPIDERWEB
OBSIDIAN
Origin: Chihuahua,
México
Cabochon Size:
21.5mm x 18.5mm x 7mm
Weight: 3.9 grams
Price: $7.00
OB706
RARE FIRE
OBSIDIAN GEM
Origin: Oregon, USA
Cabochon Size:
40mm x 34mm x 9.5mm
Weight: 18.2 grams
Price: $79.00
OB654
LONG OVAL
CABOCHON
Origin: Oregon, USA
Cabochon Size:
48mm x 19.5mm x 10.5mm
Weight: 13.3 grams
Price: $20.00
* plus shipping and handling from Mexico.
Obsidian is a type of natural occurring glass formation produced when lava flows from a volcano and cools rapidly without sufficient time for crystalized growth to start. Obsidian is commonly found within rhyolitic lava flows known as obsidian flows. Not a true mineral because as a glass it is not crystalline, no obsidian has been found that is older than Cretaceous age.
Pure Obsidian is usually dark in appearance, though the color varies depending on the presence of impurities. Iron and magnesium give the obsidian a dark green, brown or black color. In some stones, the inclusion of small, white clustered crystals of cristobalite in the black glass produce a snowflake pattern (snowflake obsidian). They may also contain patterns of gas bubbles that remained from the lava flow, these bubbles can produce interesting multicolor effects such as rainbow or velvet obsidian or a silver or even rarer golden sheen effect.
Please
Note: In some of the obsidian cabochon photos there
are reflections and white specks (dust). These cabs are mirror
polished and anything within a 360° radius is reflected like
a mirror and every minute speck of dust flowing through the air
is attracted like a magnet - these stones are gem quality specimens
and have no flaws, you can also view our Testimonals .