AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Virginia > Hydroxyapophyllite-(K) (formerly apophyllite-(KOH))

Hydroxyapophyllite-(K) (formerly apophyllite-(KOH)) from (Fairfax Quarry, 6.4 km west of Centreville), Fairfax County, Virginia

DESCRIPTION:	No. 73473
Mineral:	Hydroxyapophyllite-(K) (formerly apophyllite-(KOH))
Locality:	(Fairfax Quarry, 6.4 km west of Centreville), Fairfax County, Virginia
Description:	Triangular cavity lined with lustrous transparent greenish apophyllite crystals with minor byssolite and quartz on the rear in the matrix. The hydroxyapophyllite-(K) crystals are square tabular form and exhibit phantom-growth zoning. Ex. A. Stevenson (1916-2007) collection #746, originally acquired in Oct. 1971
Overall Size:	9x7x5.5 cm
Crystals:	micro to 4 mm
Archived:	For reference only

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