Birefringence
Birefringence
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This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.

Logo of Birefringence
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Birefringence

The definitive digital tool for geologists and petrologists. Identify minerals with scientific accuracy, calculate birefringence instantly, and access a database of 562 species—all from your lab or field device.

Key Figures

Downloads

1K+

User Rating

5.0/5

Total Ratings

0

Publisher

Andrew Barlow

Category

Utilities

Locales

1

Latest Version

1.20

Size

13.8 MB

First Released

Mar 22, 2018
Features

Precision Mineralogy at Your Fingertips

Modernize your petrographic analysis with a digital Michel-Lévy chart and a comprehensive database of 562 minerals, designed for students and professionals.

Interactive Color Mapping

Calculate birefringence instantly by tapping your observed interference color and section thickness, replacing outdated paper nomograms with digital precision.

Extensive Mineral Database

Access a specialized library of 562 minerals with detailed data on relief, optical character, pleochroism, and cleavage to confirm your identifications.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Birefringence - Interactive Michel-Levy interference color chart for mineral identification

Interactive Michel-Levy interference color chart for mineral identification

Birefringence - Interactive Michel-Lévy interference color chart for mineral identification.

Interactive Michel-Lévy interference color chart for mineral identification.

Birefringence - Interactive interference color chart showing birefringence and thickness

Interactive interference color chart showing birefringence and thickness

Birefringence - Interactive Raith-Sorensen interference color chart showing birefringence values and sample thickness

Interactive Raith-Sorensen interference color chart showing birefringence values and sample thickness

Birefringence - A table showing candidate minerals with their minimum maximum and mean birefringence values.

A table showing candidate minerals with their minimum maximum and mean birefringence values.

Birefringence - Optical and physical properties table for Elbaite mineral

Optical and physical properties table for Elbaite mineral

Description

An interactive Michel-Lévy interference color chart that features a database of 562 minerals. Click on your observed color and section thickness, and the birefringence of your section will be automatically calculated, and candidate minerals will be suggested. The range of the chart can be be set to between 200 nm and 2500 nm. The chart can be offset by + or - λ, + or - λ/4. The chart can be used as a traditional nomogram, or displayed in a "simple" mode without the clutter of radial lines (which are no longer necessary on an interactive chart). Based on the methods of Sørensen (2013), the colors in the chart are a much truer representation of the colors seen at the microscope eye pieces than existing printed nomograms. The app includes optical and physical characteristics of candidate minerals including birefringence (minimum, maximum and mean), relief, optical character, pleochroism, color and cleavage. The app includes the Raith-Sørensen color chart, which is also interactive. The Raith-Sørensen chart is a direct representation of interference color as a function of birefringence and sample thickness (Sørensen 2013). A useful utility for polarized light microscopy, polariscopy, optical mineralogy, stress optics, or anyone with an interest in birefringent materials.

Download

Download on App Store

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.