AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Connecticut > Cordierite var. Iolite

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Cordierite var. Iolite from Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut

 
Cordierite var. Iolite from Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut

Cordierite var. Iolite from Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut

Cordierite var. Iolite from Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut

Cordierite var. Iolite from Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut

DESCRIPTION:No. 79912
Mineral:Cordierite var. Iolite
Locality:Route 9 road cut at Beaver Meadow Road, Haddam, Middlesex County, Connecticut
Description:Polished specimen of cordierite in quartz with black schorl tourmaline. The cordierite has small (1-3 mm) gem sections that shows plechroism when rotated from blue-purple to pale yellow. It is said the Vikings used cordierite to navigate on cloudy days.
Overall Size:25x22x15 mm
Crystals:
Status: Sold - Posted here for reference only
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