Polished Magnesite specimen. MAP188 black conglomerate Dimensions at widest points approximately

Dimensions at widest points approximately 90 mm  x 40 mm wide x 7 mm thick

Dimensions at widest points approximately 370 mm x 110  mm with slightly tapering thickness of 11 - 14 mm

(Porphyritic basalt)

Weighs 675 grams

From Yundamindra in the Eastern Goldfields area of Western Australia

Polished Magnesite specimen. MAP188 black conglomerate Dimensions at widest points approximatelyMAP188. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Dimensions at widest points approximately 120 mm x 50 mm x 60 mm thick. Weighs 840 grams. Thick enough to cut more slices or leave intact as a display specimen ! The subtle lime green colouration is caused by the presence of nickel mineralisation. From north of Kalgoorlie , Western Australia.