Lawsonite

specimen number:
1052175

location:
Reed Ranch, Tiburon, Marin Co., California, USA

description:
his specimen features blue, blocky lawsonite crystals reaching up to 1.0 cm in size, attractively perched across the top of the matrix and preserved in good overall condition. Lawsonite is a calcium aluminum silicate prized for its distinctive crystal habit, deep blue coloration, and rarity in well formed crystals, particularly in aesthetic specimens. The specimen originates from the historic Reed Ranch locality in Tiburon, California, one of the classic North American sites where early mineralogists collected fine lawsonite specimens during the late 19th and early 20th centuries. Accompanied by an antique label dating to the early 20th century, visible at the end of the video, this piece carries documented historical provenance. A rare and visually striking example, it represents an excellent addition to any serious collection of classic American minerals.

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