![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSThT0V7rBe7d8c8RrwJYFPCs7I-0qyyrgZCowAKOP8IAAZQifqHgIywM9DzgZHGv_O-PCDPpPDm_RdKC6zC9okDhu62WLBtBMes0s2zqnWem7K10MlpeHFvqWBbF5bEN8Z_g_JFp4xq0/s400/bc77_bentopx.jpg)
Large bent OPX grain in spinel-garnet peridotite, 40x magnification, crossed nichols.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgUR6eEfqbc1Xpmdq8hGJnTo-0TcDX7G8z4seTSSJiHOBo80m1YVRSKfgI0bYcma23btaZs1tbCcqBlBRTkyHb1d_Eu30TA8hL2Z-PHjTP81adJiEIZJPBjwygkVqBLDf8U8LflLTq-Ko/s400/bc77_undulatory_olivine.jpg)
Olivine grain showing beautiful undulatory extinction. Grain is right on the edge of the section. 40x mag, crossed nichols.
Anyway... next time I'm going to use a tripod and a flash. It took me MANY tries to get these to expose properly!
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