Opal Rough - Height: 31 mm - Width: 23 mm- 9.2 g - (1)

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Antonio Rapisarda
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Selected by Antonio Rapisarda

Holds a master’s in chemistry with 25 years’ experience in minerals consulting.

Estimate  € 200 - € 220
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Natural rough opal crystal from Welo, Ethiopia, weighing 9.2 g (43 carats) and measuring 31 × 23 × 16 mm, featuring multi‑colour flashes.

AI-assisted summary

Description from the seller

☆ Rough uncut opal

☆ Multi-color / multi-flash

☆ weight: 9.2 g / 43 carats

☆ Dimensions: 31x23x16 mm

☆ NATURAL, NO TREATMENT

☆ origin: Mine, Welo Region / Ethiopia

**************

Welo opal is found in silica veins just 2-3 m below the surface. What makes its mining so difficult are the methods used. Only the inhabitants of this region are allowed to mine these deposits. As the populations are rural, they employ archaic and sometimes dangerous methods to extract the stones. Since January 2011, a new mining site has emerged with stricter standards, bringing together 500 professional miners. The Ethiopian government regulates and monitors this wealth by not allowing buyers to go to the mining sites to deal directly with the miners. The opal market lies outside the mining region.

☆ Rough uncut opal

☆ Multi-color / multi-flash

☆ weight: 9.2 g / 43 carats

☆ Dimensions: 31x23x16 mm

☆ NATURAL, NO TREATMENT

☆ origin: Mine, Welo Region / Ethiopia

**************

Welo opal is found in silica veins just 2-3 m below the surface. What makes its mining so difficult are the methods used. Only the inhabitants of this region are allowed to mine these deposits. As the populations are rural, they employ archaic and sometimes dangerous methods to extract the stones. Since January 2011, a new mining site has emerged with stricter standards, bringing together 500 professional miners. The Ethiopian government regulates and monitors this wealth by not allowing buyers to go to the mining sites to deal directly with the miners. The opal market lies outside the mining region.

Details

Number of items
1
Main Mineral
Opal
Mineral Form
Rough
Supplement
Huge rough opal crystal from Ethiopia / multi-flash natural
Weight
9.2 g
Origin (Region/ City)
Hello
Country of Origin
Ethiopia
Height
31 mm
Width
23 mm
Depth
16 mm
FranceVerified
82
Objects sold
Private

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