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FLUORITE • INDUSTRIAL MINERAL

Fluorite / Fluorspar Mineral Context in Pakistan

Fluorite (mineralogical name) and fluorspar (commercial commodity term) in Pakistan occur in hydrothermal vein systems across the Axial Belt of Balochistan. Sourcing requires distinguishing between metallurgical-grade lump (metspar) and chemical-grade flotation concentrates (acidspar) through effective CaF2 calculation.

Product Form
Metallurgical Lump / Screened Ore
Main Assay
Effective CaF2 Unit Calculation
Regional Context
Koh-i-Maran Belt, Kalat, Balochistan
Evidence Category
Official Production Evidence (P)
Representative yellow-green cubic fluorite mineral crystal cluster specimen from Pakistan
Representative mineral material: Cubic fluorite crystal aggregate on host matrix. Occurrence does not constitute available inventory.
Representative material specimen. Occurrence does not constitute available inventory. Consignment verification required.

Mandatory Claim Boundary & Sourcing Notice: This page describes mineral/material evidence and buyer requirements. It does not represent current Enigma Earth inventory. Source, ownership, grade, quantity and availability must be verified for the specific enquiry.

GEOLOGICAL APPRAISAL

Mineralogy & Geological Occurrence

Pakistan hosts significant commercial fluorite deposits within hydrothermal cavity-fill and replacement vein structures in the Axial Fold Belt. Domestic and export supplies primarily serve iron and steel foundries as a melting flux (metspar), with potential for chemical acid-grade processing (acidspar) subject to flotation beneficiation.

Geological Setting & Host Formations

The premier fluorite metallogenic district is the Koh-i-Maran and Koh-i-Siah ranges in Kalat District, Balochistan. Mineralization is hosted within faulted and fractured Jurassic Chiltan and Shirinab limestones, formed by low-temperature epithermal-hydrothermal fluids ascending along major regional fault intersections.

Key Mineralogy & Chemical Formula

The dominant mineral is fluorite (CaF2), exhibiting isometric cubic crystals and granular crystalline masses in white, pale green, yellow, violet, and deep purple varieties. Gangue minerals include calcite (CaCO3), quartz (SiO2), barite, and minor iron oxides.

Formula: Calcium Fluoride (CaF2)
PAKISTAN EVIDENCE

Pakistan Evidence & Regional Context

Fluorite extraction in Pakistan is documented through positive official reporting and active commercial mining in Kalat District, Balochistan. Production is predominantly achieved through underground adit mining and manual cobbing to yield commercial metallurgical-grade lump.

[P]Official Production Evidence
BalochistanRegional Context

Koh-i-Maran & Koh-i-Siah Ranges (Kalat District)

Pakistan's primary producing fluorite belt. Vein systems up to 2 m thick extending over several kilometers; actively mined for metallurgical flux (metspar).

Documented Regional Occurrence
BalochistanRegional Context

Chagai & Kharan Hydrothermal Belts

Epithermal veins associated with magmatic arc volcanics; exploration targets with variable silica gangue.

Documented Regional Occurrence
Khyber PakhtunkhwaRegional Context

Chitral & Swat Minor Occurrences

Hydrothermal veins crosscutting metamorphic terranes; geological occurrence and mineral specimen status.

Documented Regional Occurrence
Evidence Boundary: Do not use 'acid grade' or 'metallurgical grade' as an unverified material claim. Koh-i-Maran produces high-grade metspar by manual sorting, but producing acidspar (>= 97% CaF2) requires dedicated froth flotation plants capable of separating fine calcite gangue.
PRODUCT ARCHITECTURE

Commercial Forms & Processing Stages

Commercial requirements must strictly differentiate between raw extraction, sorted grades, and processed products.

01

Metallurgical Grade Fluorspar (Metspar)

Hand-sorted, screened lump fluorspar (typically 70% - 85% CaF2) charged into blast furnaces and basic oxygen steelmaking furnaces to lower slag melting points and remove sulfur.

Screened lump (10 mm to 60 mm)
02

Acid-Grade Fluorspar (Acidspar)

High-purity fine flotation concentrate (CaF2 >= 97.0%, SiO2 < 1.0%) used for reaction with sulfuric acid to manufacture hydrofluoric acid (HF), fluorochemicals, and aluminum fluoride.

Fine dry flotation powder (80% passing 75 microns / 200 mesh)
03

Ceramic Grade Fluorspar

Intermediate grade (CaF2 85% - 95%) used in the manufacture of opaque glass, ceramic glazes, and enamels.

Fine granular or ground powder (100 mesh to 200 mesh)
TECHNICAL QUALIFICATION

Buyer Specification Requirements

Prospective buyers and project owners should specify the parameters below. Values represent typical industrial targets and do not imply universal Pakistani deposit compliance.

Assay & Elemental Composition

6 Parameters
Calcium Fluoride (CaF2)
Metspar lump: 75.0% - 85.0% CaF2; Acidspar: >= 97.0% CaF2
No blanket grade; lot assay required
Effective CaF2 Calculation
% CaF2 - (2.5 x % SiO2)
Standard commercial contract pricing formula
Total Silica (SiO2)
Metspar: < 4.0% - 6.0% SiO2; Acidspar: strictly < 1.0% SiO2
Consumes CaF2 in smelting and HF production
Calcium Carbonate (CaCO3)
Metspar: 8.0% - 15.0% CaCO3; Acidspar: < 1.0% - 1.5% CaCO3
Consumes sulfuric acid in HF plants
Total Sulfur (S / Sulfides)
Maximum 0.03% - 0.05% S
Steel desulfurization and off-gas parameter
Phosphorus (P)
Maximum 0.02% - 0.04% P
Steelmaking penalty element

Physical & Moisture Parameters

2 Parameters
Physical Sizing
Metspar: 10 mm to 60 mm (max 10% fines < 5 mm); Acidspar: 90% < 75 µm
Screen specification per contract
Moisture Content
Lump: max 1.5% free moisture; Acidspar filter cake: max 8.0% - 10.0%
Moisture verification per shipment

Commercial & Delivery Parameters

3 Parameters
Consignment Volume
Parcels from 100 MT trial to 2,000 MT monthly commercial supply
Subject to mine production
Packaging Standards
1.25 MT heavy-duty woven polypropylene big bags with lifting loops, or loose containerized
Tied and labeled
Inspection Authority
Independent accredited surveyor (ALS, SGS, Alfred H Knight)
Full wet-chemical or XRF assay per parcel
VERIFICATION PROTOCOL

Testing & Verification Requirements

Testing and quality verification must be conducted by an appropriate independent laboratory. Commercial transactions require representative sampling, assay, chemical analysis or gemological appraisal, and third-party inspection. Enigma Earth does not maintain a private testing monopoly.

Representative Sampling

Systematic increment sampling of static stockpiles or stream cuts during container stuffing in accordance with ISO 8868 for fluorspar. Division and reduction to create analytical and moisture samples.

Standard Test Methods
  • ISO 5439 (Fluorspar for chemical or metallurgical use — Determination of calcium fluoride content)
  • ASTM E815 (Standard Test Method for Determination of Calcium Fluoride in Fluorspar by Complexometric Titrimetry)
  • ISO 9505 (Determination of total sulfur content)
Laboratory Independence

Commercial evaluation of fluorspar must calculate effective units: Effective CaF2 = % CaF2 - (2.5 x % SiO2). A material with 85% CaF2 and 5% SiO2 yields only 72.5% effective units. Third-party accredited laboratory testing is mandatory.

QUALITY CRITERIA

Impurity Tolerances & Critical Penalty Factors

Commercial specifications require explicit thresholds for penalty elements, structural soundness, color uniformity, and treatment parameters.

Silica Gangue (Quartz) and Effective Unit Reduction

Quality Parameter

Operational Impact: During smelting, each unit of SiO2 consumes approximately 2.5 units of CaF2 to form volatile silicon tetrafluoride (SiF4) and slag, reducing available fluxing power

Tolerance: Contract penalty applied on SiO2 > 3.5%; rejection typically > 6.0% in metspar

Calcium Carbonate (Calcite) Gangue

Quality Parameter

Operational Impact: In acid-grade fluorspar for HF manufacture, CaCO3 consumes expensive concentrated sulfuric acid, producing carbon dioxide gas that over-pressurizes reaction kilns

Tolerance: CaCO3 strictly < 1.0% - 1.5% in acidspar

Sulfur and Sulfide Minerals (Pyrite, Galena)

Quality Parameter

Operational Impact: Sulfur transfers into steel during ladle refining, degrading ductility and weldability; in HF plants, sulfur produces corrosive H2S and SO2

Tolerance: Total S strictly limited to < 0.03% - 0.05%

Fines Proportion in Metspar Lump

Quality Parameter

Operational Impact: Excess fine particles (< 5 mm) are blown out of steelmaking furnaces by flue gases, reducing flux efficiency and clogging baghouse filters

Tolerance: Fines (< 6.3 mm) strictly limited to < 10.0%
SUPPLY CHAIN INTEGRITY

Sourcing, Provenance & Preparation Logistics

Due diligence guidelines for legal chain of custody, packaging standards, and maritime export protocols.

Origin Verification & Licensing

All consignments must be accompanied by official transport permits from the Balochistan Mines & Minerals Development Department, confirmed lease numbers, and certified laboratory analysis.

Operations in Koh-i-Maran operate under provincial underground mining leases. Transport through provincial checkpoints requires legal royalty and mineral clearance documentation.

Provenance Caution: A parcel of hand-picked crystalline fluorite showing vibrant color does not guarantee that bulk tonnage meets metallurgical or chemical grade. Effective CaF2 and gangue analysis must be confirmed on composite lot samples.
Packaging & Maritime Transport
  • 1.25 MT heavy-duty UV-stabilized woven polypropylene bulk jumbo bags with corner lifting loops
  • Bulk containerized transport inside 20ft shipping containers with wooden retention bulkheads

Road haulage via the N-25 highway from Kalat aggregation points to Karachi Port or Port Qasim for export or domestic steel dispatch.

Handling Caution: Fluorspar is an abrasive, heavy mineral; secure container weight distribution must be maintained to prevent road transport violations.
INQUIRY SUBMISSION GUIDE

What to Send: Technical Requirement Checklist

To evaluate feasibility and structure compliant off-take, please include the following technical details in your enquiry.

1Desired product form (Screened metallurgical lump vs ceramic grade vs acidspar concentrate)
2Target calcium fluoride content (CaF2 %) and minimum acceptable effective CaF2 unit cutoff
3Maximum acceptable silica (SiO2 %), calcium carbonate (CaCO3 %), and sulfur (S %) limits
4Required size distribution (e.g. 10 mm - 60 mm lump specification with max fines threshold)
5Consignment volume (trial parcel tonnage vs recurring monthly delivery schedule)
6Delivery terms (FOB Karachi Port / Port Qasim vs CIF destination port)
7Preferred independent inspection agency (ALS, SGS, Alfred H Knight)
Incomplete RFQs lacking grade cutoffs or consignment volumes cannot be processed.
Submit a Fluorite Requirement
FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions: Fluorite / Fluorspar

Key questions regarding Pakistani mineral availability, testing protocols, and trade qualification.

Fluorite is the formal mineralogical name for crystalline calcium fluoride (CaF2). Fluorspar is the standard commercial and industrial commodity term used in trading and metallurgical metallurgy.

Structured Mineral Qualification

Structure a Compliant Fluorite / Fluorspar Requirement

Submit technical specifications, target CaF2 grades, and consignment parameters for structured verification.