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Chlorastrolite, also
known as Isle
Royale Greenstone, is a
green or
bluish green stone.
Chlorastrolite has
finely radiating or
stellate (for examples,...
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Proterozoic volcanic–sedimentary rock
sequences Isle
Royale greenstone Chlorastrolite,
found in the
Keweenaw Peninsula of
Michigan and Isle
Royale in the...
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Powellite Prehnite Prismatine Prosopite Proustite Psilomelane Pumpellyite Chlorastrolite (var.)
Purpurite Pyrite Pyrargyrite Pyromorphite Pyrophyllite Pyroxmangite...
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various other artifacts.
Greenstone artifacts may be made of greenschist,
chlorastrolite, serpentine, omphacite, chrysoprase, olivine, nephrite, chloromelanite...
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shallow sea.
State gem: Isle
Royale greenstone (since 1973). Also
called chlorastrolite (literally "green star stone"), the
mineral is
found on Isle Royale...
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variety of
quartz and moganite)
Chiastolite (variety of andalusite)
Chlorastrolite (variety of pumpellyite-(Mg))
Chrysoprase (green
nickel bearing chalcedony)...
- present-day Alabama.
These areas are also the
unique location where chlorastrolite, the
state gem of Michigan, can be found. The
northern end of the peninsula...
- in many places.
Greenstone belts are exposed, with
rounded stones of
chlorastrolite, also
known as greenstone, near and in the lake. The two main rock ****emblages...
- in many places.
Greenstone belts are exposed, with
rounded stones of
chlorastrolite, also
known as greenstone, near and in the lake.
According to the National...
- and
named for
United States geologist Raphael Pumpelly (1837–1923).
Chlorastrolite Dallasite Warr, L.N. (2021). "IMA–CNMNC
approved mineral symbols". Mineralogical...
