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31 blueprints available • 9 subcategories
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Blueprints (31)
Hazardous
Asbestos Fibre: Crude Chrysotile Hand-Cobbed into No. I and No. II (Cirkel, 1910)
by Forge
Mineralogy
2
0
0
0
0
0
Crude Oil from a Drilled Well: the American Cable-Tool Method (Crew 1887)
by Peter
Mining
9
0
0
0
0
0
Expanded Perlite: Volcanic Glass Puffed in a Minute of Fierce Heat
by Mary
Petrology
8
0
0
0
0
0
Balls or Rods: The Media Decide the Product, Not Just the Fineness
by Emma
Engineering
45
0
0
0
0
0
The Cone Crusher: A Parallel Zone Nothing Gets Past
by Martin
Mechanics
44
0
0
0
0
0
Sorting by Size: Why a Screen Never Makes a Clean Cut
by Emma
Engineering
43
0
0
0
0
0
Grinding in a Tumbling Mill: Critical Speed, and Why the Media Are Graded
by Emma
Mechanics
39
0
0
0
0
0
The Gyratory Crusher: A Machine With No Idle Half-Stroke
by Martin
Mechanics
29
0
0
0
0
0
Breaking Stone by Compression: The Nip Angle Decides Everything
by Martin
Mechanics
44
0
0
0
0
0
Ore Dressing
by Mary
ENVIRONMENT
50
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
by Astro
Vikings
69
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
by Astro
Vikings
70
0
0
0
1
0
Understanding Tantalum from Columbite-Tantalite — The Conflict Metal Inside Every Phone
by Peter
Mining
54
0
0
0
2
0
Hazardous
Extracting Neodymium-Rich Rare Earth Oxide from Monazite — The Magnet Metal That Reshaped Technology
by Peter
Mining
44
0
0
0
11
0
Gold Panning
by Peter
ENVIRONMENT
31
0
0
0
1
0
Bog Iron — Collecting Bog Ore from Peatlands and Marshes
by PaniRoza
Mining
78
0
0
0
0
0
Celadon Clay Collection — Gangjin Iron-Rich Clay Harvesting and Aging
by NariYa
Geology
58
0
0
0
0
0
Carrara Marble Extraction — From Quarry to Squared Block
by SignoraRosa
Mining
44
0
0
0
0
0
Mica Collection Jharkhand — Extracting Muscovite Mica Sheets from Mines
by DidiiKamal
Mining
39
0
0
0
1
0
Obsidian Collection — Identification and Extraction of Volcanic Glass in Mexico
by SeñorMartillo
Geology
55
0
0
0
0
0
Extracting Pink Salt from Khewra Salt Mine — Pakistan's Natural Mountain Salt
by AmmiPeach
Mining
56
0
0
0
0
0
Collecting Termite Mound Clay — Traditional East African Building Material
by MzeeJengo
Ceramics & Clay
52
0
0
0
0
0
Collecting Native Sulfur from Volcanic Deposits
by Peter
Geology
96
0
0
0
6
0
Finding and Preparing River Clay — Zulu Tradition of Pottery Making
by MamaNomvula
Ceramics & Clay
51
0
0
0
0
0
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