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| or·tho·clase [ áwrthə klàyss, áwrthə klàyz ] |
noun |
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| Definition: |
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type of feldspar: a variously colored feldspar. Source: igneous rock.
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| Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc. |
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