Erythrite
Erythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula (Co3(AsO4)2·8H2O). Erythrite and annabergite (Ni3(AsO4)2·8H2O) (nickel arsenate) form a complete series with the general formula (Co,Ni)3(AsO4)2·8H2O.
Erythrite crystallizes in the monoclinic system and forms prismatic crystals. The color is crimson to pink and occurs as a secondary coating known as cobalt bloom on cobalt arsenide minerals. Well-formed crystals are rare, with most of the mineral manifesting in crusts or small reniform aggregates.
Erythrite was first described in 1832 for an occurrence in Grube Daniel, Schneeberg, Saxony, and takes its name from the Greek έρυθρος (erythros), meaning red. Historically, erythrite itself has not been an economically important mineral, but the prospector may use it as a guide to associated cobalt and native silver.
Erythrite occurs as a secondary mineral in the oxide zone of Co–Ni–As bearing mineral deposits. It occurs in association with cobaltite, skutterudite, symplesite, roselite-beta, scorodite, pharmacosiderite, adamite, morenosite, retgersite, and malachite.
Podcasts:
-
by Earthride
-
by Earthride
-
by Earthride
-
by Earthride
-
by Earthride
Black
by: EarthrideWas a cold dark night the ‘witches hour
Around the fire, with the cross turned down
I was looking for something to do
Didn’t know what I was getting into
Chorus:
Complex rituals unknown to man
Souls held by ungodly hands
Black jackal on earth again
As few pray he doesn’t take revenge
Magic charms with the taste for sin
Wicked spectrums man kinds end
Deceiving the universe the time has come
For the children of the unholy one
Chorus
The human race can’t take the pain
Darkness waits on what’s to come again
Signs of evil damnations dawn
Signs of life have now all gone
Chorus
Open my eyes to a nightmare it seems
Just to realize it was all a dream
Open my eyes to a nightmare it seems
Just to realize it was all a dream