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1.4" Realgar Crystals on Sphalerite - Peru
This fantastic specimen contains a large cluster of deep red realgar crystals, clinging to a sphalerite matrix, collected from the Palomo Mine in Perú. One quartz crystal can be found on what could be considered the backside of the specimen. The largest realgar crystal is .77" with the cluster measuring continuously 1.2" long.
Realgar is an arsenic sulfide mineral with the chemical formula of AsS. Realgar is known for its lustrous red hue, and pristine specimens can be transparent with sharp crystals. The crystal structure is typically stubby and prismatic, though botryoidal and earthy clumps can form as well.
Following prolonged/repeated periods of time under light, realgar will alter to pararealgar. If further left exposed, the pararealgar will crumble to a yellow dust. This mineral instability is particularly troublesome for museums where consistent light exposure has caused specimens to crumble over time. However, short, periodic exposure to light shouldn't alter realgar specimens.
Realgar contains a significant amount of poisonous arsenic, making it somewhat toxic. Therefore, we recommend washing your hands following handling.
Following prolonged/repeated periods of time under light, realgar will alter to pararealgar. If further left exposed, the pararealgar will crumble to a yellow dust. This mineral instability is particularly troublesome for museums where consistent light exposure has caused specimens to crumble over time. However, short, periodic exposure to light shouldn't alter realgar specimens.
Realgar contains a significant amount of poisonous arsenic, making it somewhat toxic. Therefore, we recommend washing your hands following handling.
SPECIES
Realgar, Sphalerite & Quartz
LOCATION
Palomo Mine, Perú
SIZE
1.4" long, 1.1" wide, longest crystal .77"
CATEGORY
ITEM
#45739
