American lapidary technician Frank E Holden repairing apophyllite crystals on a block of prehnite in the lapidary workshop of the Mineralogy and...
Halite, commonly called rock salt; it can be used as a culinary salt, and Gypsum from salt lake, Lake Johnston, Western Australia粗鹽
Sedimentary deposits in coffee rock, a soft sedimentary rock of organically stained sand deposited in the coastal Helocene sandplain. Bundjalung...
Banded iron, tightly folded, approximately 3 billion years old. Southern Pilbara region, Western Australia.澳洲
Jade. The Spanish conquerors of Mexico believed that a green stone prized by the Indians, would cure kidney stones. In the Far East a stone of...
Jade. The Spanish conquerors of Mexico believed that a green stone prized by the Indians, would cure kidney stones. In the Far East a stone of...
Fossil of a tortoise. It is only the bony shell of this fossil tortoise which remains. The composition of the mosaic is of closely fitting plates.
Fossil of a tortoise. It is only the bony shell of this fossil tortoise which remains. The composition of the mosaic is of closely fitting plates.
Fossil of a tortoise. It is only the bony shell of this fossil tortoise which remains. The composition of the mosaic is of closely fitting plates.
Fossil of a tortoise. It is only the bony shell of this fossil tortoise which remains. The composition of the mosaic is of closely fitting plates.
Agate rock. A microcrystalline variety of silica, chiefly chalcedony, characterised by its fineness of grain and brightness of colour. .
australia. northern territories. uluru (ayers rock). sunrise on sandstone massif. moon still visible - 岩石學 個照片及圖片檔
uluru (ayers rock) sandstone massif. desert bloodwood (eucalyptus centralis) australia. - 岩石學 個照片及圖片檔
uluru (ayers rock). sandstone massif. desert bloodwood (eucalyptus centralis), australia. - 岩石學 個照片及圖片檔
looking up at uluru (ayers rock) at sunset. sandstone massif. desert bloodwood (eucalyptus centralis), australia. - 岩石學 個照片及圖片檔
hoodoos, bisti badlands. de-na-zin wilderness (bisti/de-na-zin wilderness). northern new mexico - 岩石學 個照片及圖片檔
hoodoos, bisti badlands. de-na-zin wilderness (bisti/de-na-zin wilderness). northern new mexico - 岩石學 個照片及圖片檔
glacial lake. varve deposits. alternating silt/clay layers. discovery park, seattle, washington - 岩石學 個照片及圖片檔泥土, 有層次
