Ashland Feldspar

From the Siskiyu Mountains of southern Oregon, near the town of Ashland, we collected this consolidated tuff of volcanic origin, which encloses a dramatic range of millimeter sized feldspar crystals.  While the colors under simple crossed polarizers are a far cry from the plain polarized view, adding a 550nm wave plate simply opens a window on a completely new impression of feldspar.  When it comes to common minerals that play up the phenomena of polarized light intereacting with birefringent crystals, this is hard to beat.

Ashland Feldspar

  • Your thin section of Ashland Feldspar has numerous large crystals, easily viewed with the ~15X magnifier.

  • Shipping within the US is included in sales prices. Shipping to Canadian addresses is an additional $8.50 USD. Other International shipments are charged $12.50 USD per order. If an order includes more than five items, we will contact you to quote adjusted shipping charges.

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