1. IOL.1947.a.1529(13) Reference (shelfmark): IOL.1947.a.1529(13) Title: Microsection showing metasomatic replacement of crystalline limestone by galenta and quartz. G[=]Gelena. Q[=]Quartz. L[=]Limestone. Photographer: Unknown Scope & Content: Genre: Scientific Photography Photomicrograph, circular image, mounted facing p. 160. Collection Area: Visual Arts Languages: Not applicable Date Range: c 1909 Extent: 1 item