Red-Brown Heulandite Fan with Clear Apophyllite Crystals & Stilbite, in a Trimmed-out Pocket of Volcanic Basalt Matrix pink Size: 105 x 9 x

Size: 105 x 9 x 7 mm

such as hackmanite

Pyrite is more stable than pyrrhotite and can replace it through a chemical reaction

such as changes in temperature

From Kampung

Red-Brown Heulandite Fan with Clear Apophyllite Crystals & Stilbite, in a Trimmed-out Pocket of Volcanic Basalt Matrix pink Size: 105 x 9 xA rare, highly lustrous red brown heulandite fan capped with numerous, water clear double terminated fluorapophyllite crystals. The heulandite fan shares the trimmed out pocket of volcanic basalt rock with clear fluorapophyllite crystals and minor peach stilbite crystals. Named in 1822 after John Henry Heuland, a mineral collector and mineral dealer living in England. From the famous zeolite locality at Jalgaon District, Nashik Division, Maharashtra,