green stone

green·stone

[green-stohn]
noun
any of various altered basaltic rocks having a dark-green color caused by the presence of chlorite, epidote, etc.

Origin:
1765–75; green + stone

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Collins
World English Dictionary
greenstone (ˈɡriːnˌstəʊn) [Click for IPA pronunciation guide]
 
n
1.  any basic igneous rock that is dark green because of the presence of chlorite, actinolite, or epidote
2.  a variety of jade used in New Zealand for ornaments and tools

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Green stone is always a great word to know.
So is lollapalooza. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
American Heritage
Science Dictionary
greenstone   (grēn'stōn')  Pronunciation Key 
Any of various green metamorphic rocks formed from igneous rocks that have a relatively low silica content and owe their color to the presence of a green mineral such as chlorite, hornblende, or epidote.
The American Heritage® Science Dictionary
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