Fire Assay / Cupellation: Programme

 

Sections

Icons

Details

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1.  Magnesia
Cupels   &
Blocks

..
. ( history ).

MAGNESIA CUPELS:
MABOR®:   General  Presentation
◊ Data Sheet: Single CUPELS
◊ Data Sheet : BULLION BLOCKS
◊ Working Instructions - smaller cupels for Bullio Assay to ISO 11426
◊ Working Instructions - bigger cupels for Ores Assay  to ISO 10378
◊ Quality and Environment Management Certificates: ISO 9001 & ISO 14001
◊ Declaration of Conformity
◊ Brochure - full CUPELS & BULLION BLOCKS manufact. Programme (PDF, 3.6 MB)


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MABOR

2.  Cupellation
Tools

HANDLING TOOLS
◊ TRAYS & TONGS  - For Single Cupels:
◊ Tray / Block FORKS, Automatic Sample LOADER  - For Bullion blocks
◊ TONGS, HAMMERS & ANVILS  -  For Doré Handling


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3.  Cupellation
 Accessories

CUPELLATION CONSUMABLES:
◊ MABORITE® : Magnesite Powder.
◊ ASSAY  LEAD: Tape & Tablets,
◊ SILVER Inquarts.
◊ Thermal PENCILS / CRAYONS, Cupel BRUSHES.


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4.  Fire Assay
 Crucibles

FIRE ASSAY CRUCIBLES (analysis of precious metals)
◊ UNIVERSAL CRUCIBLES (Silico-Aluminous Fireclay)
    – For Flux Fusion of auriferous Ores, Concentrates & Ashes under reductive conditions


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5.  Fire Assay
 Tools

TOOLS & ACCESSORIES:
◊ Crucible TONGS
◊ MABORITE® : Magnesite Assay Powder. LITHARGE


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6.  Parting 
Annealing

 

APPARATUS FOR PARTING & ANNEALING
◊ Annealing CRUCIBLES
◊ Parting FLASKS
◊ Annealing BASKETS



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7.  Annealing
Crucibles

REFRACTORY PARTS:
◊ FLUXING CRUCIBLES (Silico-Aluminous):
◊ Crucibles, Dishes, Capsules, Scorifiers


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Fire Assay / Cupellation: Basic Information

 

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8.  Gold
Analysis
Terminology

(Multilingual)

TECHNICAL VOCABULARY ( English, German; Dutch, French; Italian, Spanish, Russian )
◊ GOLD  DETERMINATION - Cupellation                                 ISO 11426    ASTM E1335-08
◊ FIRE ASSAY: Minerals - Concentrates - Residues             ISO 10378    ASTM E1805-07
◊ REAGENTS - Fluxes - Apparatus
◊ Other GOLD ASSAY METHODS
◊ PRECIOUS METALS - Its Alloys - Base Metals


Terms 1
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9. Essential
Fire Assay
 Terms


as used in
Texbooks

MEANINGS & CLUES of most Essential Fire Assay Terms
 Assay ton
 Blank Assay - Blank Test
 Cupelation Steps: Driving - Freezing - Opening (uncovering) - Blink - Flash - Scintillation
 Feathers
 Matte - Speiss - Regulus
 Play of colours - Brightening
 Spit - Spitting - (at beginning of Cupellation)
 Spit - Spitting  - Sprout - "Sprouting"  - Spurting-  Vegetation (at end of Cupellation)
 Surcharge - Check Proof - Standard
 Inquart
 Hallmark - Microcupellation
 Cupel behaviour


A. T.
Blank
Steps
Feather
Matte
Play
Spit
Spurt
Charge
Inquart
Hmark
Cupel

10.  Fire Assay

Bibliography:

Important
Articles
     &
Papers

(free download)

ANALYTICAL METHODS FOR DETERMINATION OF GOLD ( Articles & Papers ):

Articles from Word Gold Council (WGC)

◊ Assaying of Gold Jewellery - Review of Methods for Measuring Gold Content

◊ Gold Analysis - Comparisons of available Techniques

Articles from  ►"Gold Technology"  Magazine (WGC)

◊ "Assaying of Gold Jewel. - Choice of Technique" (GT, nº 32, 2001)               Dr. C. W. Corti

◊ "Analysis of Carat Gold"                             (GT, nº 22, Jul. 1997)                                 M. Brill

◊ "Assaying and Hallmarking in London"         (GT, nº 3, Jan 1991)                        D. W. Evans

◊ "Assaying Gold in Switzerland"                   (GT, nº 3, Jan 1991)       Wälchi / Vuilleumier

◊ "Touchstone Testing of Precious Metals"     (GT, nº 3, Jan 1991)       Wälchi / Vuilleumier

Articles from ►"Gold Bulletin" Journal (WGC)

◊ "Analysis of Gold. A Review of Methods"          (GB, Vol. 13, issue 1)       Roland S. Young

Articles from the ►"Alchemist" Journal , (LBMA)

◊ "The Art & Science of a Precious Metal Lab."      (Alch., nº 48, LBMA)               David Court

Articles from "Pure & Applied Chemistry" Magazine"

◊ "Analytical Chemistry of Noble Metals" (Pure & Appl. Chem., Vol. 49) Dr. Jon Cl. van Loon

11.  Fire Assay
Bibliography:
Textbooks

► Internet Archive
►I. A.

REFERENCE BOOKS - Free download  Internet Archive  (I.A.) ►Bewster Kahle
"A Textbook on Fire Assay"                                                                      Edward E. Bugbee
"Fire Assaying"                                                   Orson C. Shepard & Waldemar F. Dietrich
"A Manual on Fire Assaying"                                                              Charles Herman Fulton
"The Sampling and Assay of the Precious Metals"                                 Ernest Alfred Smith
"Metallurgy of Gold"                                                                                       Thomas K. Rose
"The Precious Metals
: comprising Gold, Silver and Platinum"                   Thomas K. Rose
"A Text Book of Assaying"                                                        C. Beringer & J. J. Beringer


Bugbee
Shepard
Fulton
Smith
Rose1
Rose2
Beringer

12.  Assay
Beauties:
Woodcuts
 & Texts
 & Poems

(free download)

FOUNDATION STONES OF MODERN METALLURGY:
◊ "Das große Probierbuch", (Frankfurt am Main, 1598)    Lazarus Ercker von Schreckenfels
◊ "De Re Metallica", (Basel, 1556)                                                       Georg Bauer "Agricola"
◊ "De la Pirotechnia", (Venezia, 1540)                                                 Vannoccio Biringuccio
◊ "Quilatador de la Plata, Oro y Piedras", (Valladolid, 1572)             Juan de Arfe y Villafante
◊ "
Alchemy, Chemistry & Metallurgy in Renaissance Europe"       Martinón-Torres & Rehren
"Lo Canviador" - "The Exchanger" (c. 1420) - >Rialc - Unina                  Jordi de Sant Jordi


Ercker
Bauer
Biring.
Arfe
Martin.
StJordi