Tertiary Zeolite Ore Mineral Distribution in Size Fractions

Zeolite ores and protores occur in extensive deposits in the western United States. A recent paper describes the general geology and mineralogy of these deposits and their geographical distribution. The zeolites are alkali- and silica-rich varieties of mordenite, erionite, chabazite, phillipsite, ferrierite, and clinoptilolite.

The Tertiary zeolite ores consist of one or more zeolites (mordenite, erionite, chabazite, phillipsite, ferrierite, clinoptilolite) formed as alteration products of pyroclastics. In addition to unaltered volcanic glass the gangue minerals include quartz, cristobalite, tridymite, opal, feldspar, montmorillonite, hornblende, calcite, gypsum, thenardite, iron oxides, and in some cases one or two other zeolites. Removal of the silica minerals and glass is the main problem in ore beneficiation.

Mineralogical analysis of size fractions obtained on zeolite ore samples dispersed with minimal grinding provides a quantitative determination of the constituents, reveals the microtexture, and gives the size distribution of the single crystals and various types of aggregates and particles. These data are useful for beneficiation as they aid in the choice of the initial method of disaggregation and give the size ranges in which the zeolite and gangue minerals concentrate.

The bulk mineral compositions, as determined by analysis of the size fractions; abbreviations used are mordenite (MO), clinoptilolite (CL), erionite (ER), chabazite (CH), phillipsite (PH), analcime (AC), glass (GL), montmorillonite (MT), quartz (Q), orthoclase (OR), calcite (CAL), iron oxide (FE-OX), tridymite (TR), cristobalite (CR), and aggregate (AGG).

Although some zeolite layers require little if any mineral beneficiation, it is evident that different methods of disaggregation and separation will apply to the various deposits. Calcite and montmorillonite contribute to cemented aggregates but most of the polyphase aggregates result from interlocking zeolite crystals. As with the highly silicified hydrothermal zeolite ores not described in this paper, those ores which are principally zeolite-glass require comminution before subsequent treatment.

tertiary zeolite ores bulk mineral composition

tertiary zeolite ores histogram

tertiary zeolite ores histogram illustrating

 

mineral distribution in size fractions of tertiary zeolite ores

By |2019-09-09T14:10:31-04:00September 4th, 2019|Categories: Non-Metallic & Industrial|Tags: |Comments Off on Tertiary Zeolite Ore Mineral Distribution in Size Fractions

BUY Laboratory & Small Plant Process Equipment

We have all the laboratory and plant equipment you need to test or build/operate your plant.

ENTER our Mining Equipment' Store

We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

Do you need METALLURGICAL TESTING of your ORE?

View the Services we Provide

911Metallurgist Mineral Processing & Process Development Laboratory

We have a metallurgical test for every possible mineral type and treatment.

Need ENGINEERING Services or Plant TROUBLESHOOTING?

We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

911Metallurgy Engineering

Contact us for process engineering, metallurgical investigations, plant optimization, plant troubleshooting, needs. WE “FIX” METALLURGY.

I Need Consulting Engineering Help
I Need Ore Laboratory Testing