A Book of Precious StonesJulius Wodiska · 1909

A Book of
Precious Stones

The identification of gems and gem minerals, and an account of their scientific, commercial, artistic, and historical aspects

Cinnabar, Tungyen Prefecture, Kweichow, China — the book’s frontispiece
Cinnabar, Tungyen Prefecture, Kweichow, China — the book’s frontispiece

Parlour Games

Birthstone Finder

April was sapphire and June was agate — find your stone by the 1909 list.

Which Gem Are You?

Seven questions, eight gems, one verdict — judged by the standards of 1909.

The 1909 Gem Quiz

Ten questions from the book’s pages — then challenge a friend to beat your score.

Spot the Fake

Doublets, paste, and fish-scale pearls: deliver your verdict on eight cases.

Surprise Me

Open the book to a page at random — eighty chapters of gems, frauds, and folk-lore.

Before the stonesThe Fascination of GemsThe Purpose of This BookThe Author's ClassificationThe Order of ValueKluge's ClassificationBauer's ArrangementRank and Price

The Five Precious Stones

Emerald

The green aristocrat of the beryl family, rarer in perfection than almost any other stone.

Pearl

The aristocrat of gems — social insignia of rank from the Ptolemies to the present day.

Ruby

Fine rubies are scarcer than fine diamonds; the best come from one small territory in upper Burma.

Sapphire

The stone of April, symbol of constancy — corundum in every colour that is not red.

The Semi-Precious Stones

Amethyst

The purple quartz of Bacchus, once prized above all for its scarcity.

Coral

Built by tiny architects of the sea and worked in the shops of Italy.

Garnet

Almandite, pyrope, rhodolite — a whole family of stones behind one name.

Opal

No gem is more individual: a play of rainbow colours in a milky stone.

Topaz

Yellow by reputation, yet found colourless, blue, and pink.

Turquoise

The sky-blue gem of the Persians and of the Aztecs.

Cat's-Eye

Chatoyant stones with a moving line of light — cymophane, quartz, and tiger-eye.

Chrysoprase

The golden-leek green hornstone beloved of Frederick the Great.

Jade

The Yu stone of China: jadeite and nephrite, tough beyond all others.

Moonstone

A soft floating light like moonshine, from the gem gravels of Ceylon.

Peridot

Chrysolite, olivine, peridot — three names for one puzzling green stone.

Kunzite

America's new gem, a lilac spodumene that glows under radium.

Tourmaline

A stone of many colours, dug from the granite of Maine and California.

Amber

Fossil resin of ancient forests, cast up by the Baltic Sea.

Bloodstone

Green jasper flecked with red, the March stone of courage.

Moss Agate

Chalcedony holding miniature forests and landscapes.

Onyx & Sardonyx

The layered stones of the cameo-cutter's art.

Occasional Stones

An alphabet of minerals that appear in the shops from time to time.

The Lapidary’s Art & Trade

Lore & Legend