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international diamond council, idc

mesolite

makeables

chalk

melane

mele

meliphanite

doit

spark

(: ) fine granulation

blue peach

- German silver

german silver

menilite

twinkling

brilliance

, , shimmer

- twinkle

- twinkling

knife tool

metal

metal

platinum metal

, - metal

- emergency metal

metallic

adaptive

specific

scrap metal waste metal

, - metalwork

metal discard

spiral wrap hose

- host metal

- metal binder

smelting industry

non-ferrous metals

- meteorite

~ cosmic iron, meteoric iron

matinee

method

investment casting technique

screw tap scribe awl tap borer tap drill

() piercing saw (jig saw)

- microcline

microcline

microlite

microscopic pore

trace contaminant

bonding process

microscope ~ binocular microscope ~ petrographic (polarizing) microscope

microhardness

haircrak

holding furnace

flat bar mill bar muck iron

maldenstone

spar

, mineral

mineral spot

mineral aggregates

, - opaline

- fools gold

mirickite

( ) continuous casting machine continuous caster

polygonal

pattern

- master pattern

moldavite, pseudochrysolite, tektites

hammer scale hammer slag

handhammer

- brick hammer bricklayers hammer

- handhammer

hammer

- shaping hammer

milky quarts

momme

monazite

- coin

() - bean

palladium coins

- monogram

crystal single

monocrystal, single-crystalline

( ) rough block of stone

, - monochrome hues

montebrasite

montmorillonite

() mor(o)lop

moralla

morganite

morganite, vorobyevite

mordenite

morinite

black quartz, morion

- morion

teeming lap

coiling machine

moss agate (mocha stone)

marble

marble onyx

marbled

( ) moir

moissanite

gentlemens pocket watch

- mans ring

chamotte powder

ingot mold charging box charging pan

murchisonite

muscovite

muffle furnace, muffler

soapstone, soaprock, pagodite

wash gold

, , soft

- softness

dressing - table set

hardness points

- boxed sets

( ) cold-hardened, hammer-hardened, cold-worked ( , )

cloth working strain hardening

key bolt spiked iron

pumping under pressure

pump feed under pressure

heating

running hot

heat up

collar mark

( ) incomplete cut

shrinkage crank

file broach file needle file needle-point

needle file

emery cloth polishing stone

() knurl(ing) tool

( ) roll forming

atch piece

, rolled gold

( ) strain hardening

( ) cold work cold- work hardening work hardening

anvil

nacre

nambulite

( / ) strung on cotton

- file rough-cut file coarse file rough

- file riffling

filling agent

free way vector

guide bearing guide plate

stress

outer rim

wrist watch (watch)

( ) inlay (damascene)

real jewels

scull formation

accretion buildup

flowstone

nathrolite

carbon pick-up carburizing

gem(m)ology

naumanite

, , ( ) base

untwinned

unfinished section

short-run casting

- defect

, - blemish

nickel silver

hard bank

non-metallic inclusions

extremely fine

extraordinarily precious

, , ( ) off colour

unfaceted

heterogeneous material

neolith

pebble pup

casting leakage

irrepeatable

hyalithe

, , opaque

neptunite

unsplit pattern

fire resistance

( - ) ~ poor cleavage ~ imperfect cleavage

, , - inperfect

, , - imprefection

poor fusion

flaw discontinuity

nepheline

greenstone, nephrite, axe-stone, youstone

nephrite, jade

( ) bottom halves, lower girdle facets

pavilion

- base of alloy

nickeline

- nickelage

nikel plating

, - nikel

nicolo

( ) nicol ~ polarizing nicol ~ crossed nicol

novaculite

pair of scissors

metal shears

- anklet

jig - saw

nose ring

nosean (noselite)

snatch hardness number

( ) rough finish

( ) rough cut

fat extraction

degreasing agent

( ) general foreman

() parachrosis

burning calcinations

( ) break down

( ) setting punch

( )

gemmy

-cloud agate

flash welding burr

flash recess

(), , - chip

, separation

equipment facilities

hand specimen

sample

- ( ) check test piece

shrinking

- model coins

cutoff piece ends crop

wedding ring

engagement ring

- volcanic glass

obsidian

obsidian, hyalopsite

volume shrinkage

joint committee of world federation of diamond bourses, jc wfdb

, unit weight

48 oval hexagonal cross - cut

oval flat table

oval cabochon

-fire agate

, firestone

- fire opal

ziasite

fire resistance flame resistance

refractory refractory material

fire resistance refractoriness refractory property

refractory

faceted surface

faceted stones

()

faceted briolette

set a limit

arresting device

faceting

gem - cutting

- rectangular step - cut

- marquise (navette)

- princess cut

- rose cut

- heart cut

( ) - pendeloque

- trillion cut

- flanders cut

cabochon

faceted pear - shape

sphere cut

, cut diamond

( ) uniaxial

odontolite

necklace

neclet

( ) - riviere

- oikocryst

fire scale oxide scale scale

descaling mill

resistance to scaling

opalized wood (petrified wood)

, fossil

oxidation

oxidation

souring

yellow ground

oxidant oxidizing agent

acidify acidulate

oxidize

near gem

() lembergs stain

painted stones

silicified wood, chinarump

, agatized wood

woodstone

bleb

oxide

chemical black

() octagonal flat table

() 20 octagonal step - cut

() 45 octagonal cross - cut

() octagonal cabochon

octahedron

olivine

oligoclase

tinned

onyx

black onyx

,() -onyx agate

- onyx-opal

, - opal

opalescence

( ) opalescent

opaline

opalite

( ) - opaline

, - opalescent

opera

forward slip

( ) operculum, china cats eye

saw off

box form casting box flask mold molding box molding frame

flask

- mounting

setting

( ), - chase

burred mount

flaring tool

be mounted in

set right

- assaying

assaying of minerals

optic axis

let down

orangy pink diamond

, original

orient

orletz

decor

decorative pattern

- orthoclase

orthoclase, kalifeldspath

leaded glass

, () dazzling (jewellery)

base of an alloy

alkali

point stone

cutting pliers nipper pliers pair of nippers wire nippers

cool down

twinning axis

symmetry axis (of rotation)

triad

0,01-0,15 ct melee rodotilite forcherite chlorospinel shell

bleaching process etching blanching

bleaching agent

- selected stones

e solidifying agent

, laser drill hole

- compartment for rings

foundry

enamel finish

, , - finish

parting citrine-madeira negative

air drain

annealing

burn off

cutting off

open riser

tint (tinge)

- cast from

casting founding

gravity-die casting

chill casting

( ) foundry goods

high- quality casting

hand - cast

wash off

- wash gold

unit elongation

saw off

, , - polished

abatement letting down temper(ing)

back draw let down peel off

reflect light

( ) backward slip wastes

, () hue

, , - polished

- ophite

etching needle

chill down cool down chill mold

chilling effect cooling development off brittleness

- valuer

, , allure

adamantine

abstergent blasting agent cleaning refining

, (), brighten

 

pagodite

padmaragaya () padmaragaya porpezite palygorskite

- palladium

- stick of solder

papagoite

parisite

pair of pliers metal hardening () workholding device

( ) star mark

- soldering borax

- blast burner (blest lamp) for soldering

soldering bit soldering copper soldering iron

- soldering iron

- soldering gun

- soldering flux

- pegmatite

landscape agate painite

pectolite

igneous-rock froth

froth

( ) pennyweight

- the real thing

, exclusive

overheating

process stage

- advanced technology

- advanced technology

() fire mark select deal

( ) cross joint agitation mixing

chatoyant

melting down melt down

remelting

- remelt

() stop mark peritectic

peridot, olivine, chrysolite

, - periot

periclase

nacre, mother of pearl





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