Green hell in red world

ALLUVIAL EXPLORATION & MINING
PHOTOGEOLOGY | SEISMIC SURVEY | BANKA DRILLING | MANAGEMENT | TRAINING

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GOLD
  gold
  gold chemistry
  gold transport
  gold production
Gold Geology
  alluvial deposits
  primary deposits
  gold maps
Gold History
  gold lore
  primitive
  classic
  medieval
  renaissance
  post-renaissance

DIAMONDS
  diamonds
  exploration
  diamond production
  diamond trade
  diamond value
  diamond wars
  diamond cutting
Diamonds History
  mining history
  large and famous
Diamond Pictures
  diamond pictures
Precious Stones
  rubies
  sapphires
  emeralds
  aquamarines
  gem cutting

ALLUVIAL EXPLORATION
  survey
BANKA Alluvial Drills
  drilling manual
  HAND drills
  drill parts
  tools 1
  tools 2
  tools 3
  tools 4
  MOTOR drills

ALLUVIAL MINING
example
Engines
DEUTZ engines
diesel-engines
Equipments
mining systems
gravel pumps
water pumps
high pressure
 water pumps

pump stands
couplings
engine-pump frames
Pipes, Hoses, etc.
water systems
Recovery systems
recovery systems
gold recovery
diamond recovery
River Dredges
diver-less dredges
Accessories
generators
firefighting pumps
Trucks 4x4
4x4 trucks
Spare Parts
parts
Pricing
Prices

SERVICES
photo geology
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field manager
profile
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contact

GEMS

FORMS OF CUTTING

star and steps gem cuts

Plate 2: Star and step cuts: 1a, b, c, Star-cut (of Mr. Cair). 2, a, b, Step-cut, four-sided. 3 b, Step-cut, six-sided. 4 b, c, Step-cut, eight-sided. 5 a, b, Mixed-cut. 6 a, b, Cut with double facets. 7 a, b, c, Cut with elongated brilliant facets. 8 a, b, c, Maltese cross cut.


Related links: NEXT PLATE
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Seismic Survey 


Rafal Swiecki, geological engineer email contact

This document is in the public domain.

March, 2011