OPAL ROUGH FROM MT SHASTA USA 133.05 CT [VS5124]
- UGS
- Dimensions (mm)
- 37.000 x 38.000 x 9.000mm
- Poids (cts)
- 133.000
- Taper
- Rough
- Couleurs
-
VOLCANIC OPALS
MT SHASTA OPAL ROUGH
This is a specimen of rough mined at the base of Mt Shasta in California USA.It is formed of silica but lacks the fire of opal.Some parts are transparent with a green hue.
Weight 133.05 cts app
Size 67 x 38 x 9 mm app
About 593,000 years ago andesitic lavas erupted in what is now Mount Shasta's western flank near McBride Spring. Over time an ancestral Mount Shasta stratovolcano was built to large but unknown height; sometime between 300,000 to 360,000 years ago the entire north side of the volcano collapsed, creating an enormous landslide or debris avalanche,
The next cone to form is exposed south of Mount Shasta's current summit and is called Misery Hill. It was formed 15,000 to 20,000 years ago from pyroxene andesite flows and has since been intruded by a hornblende dacite dome.
- UGS
- Dimensions (mm)
- 37.000 x 38.000 x 9.000 mm
- Poids (cts)
- 133.000
- Taper
- Rough
- Couleurs
-
VOLCANIC OPALS
MT SHASTA OPAL ROUGH
This is a specimen of rough mined at the base of Mt Shasta in California USA.It is formed of silica but lacks the fire of opal.Some parts are transparent with a green hue.
Weight 133.05 cts app
Size 67 x 38 x 9 mm app
About 593,000 years ago andesitic lavas erupted in what is now Mount Shasta's western flank near McBride Spring. Over time an ancestral Mount Shasta stratovolcano was built to large but unknown height; sometime between 300,000 to 360,000 years ago the entire north side of the volcano collapsed, creating an enormous landslide or debris avalanche,
The next cone to form is exposed south of Mount Shasta's current summit and is called Misery Hill. It was formed 15,000 to 20,000 years ago from pyroxene andesite flows and has since been intruded by a hornblende dacite dome.
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Positif
Thank you for upgrading the shipping to FedEx! Your generosity is greatly appreciated. I believe natural opals are among the few gemstones that will retain their value over time. Their mesmerizing play of colors never ceases to amaze me.
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Positif
Thank you for upgrading the shipping to FedEx! Your generosity is greatly appreciated. I believe natural opals are among the few gemstones that will retain their value over time. Their mesmerizing play of colors never ceases to amaze me.
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Positif
Hi, hello I got my items (Opal Parcel) today afternoon. I saw them and admired itunder strong cold LED Light. So huge! l like and love it so much. Thank you very very much. Have a great good time. Best regards from, Oli