# Opal Field

> Appraise rough opals: turn the stone, aim the lamp, catch the fire.

Canonical page: [https://chrome-stats.com/d/org.chi.psi.opalfield](https://chrome-stats.com/d/org.chi.psi.opalfield)

## Overview

- **ID:** `org.chi.psi.opalfield`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** CardShark
- **Category:** GAME\_CASUAL
- **Downloads:** 3
- **Version:** 1.0
- **Last updated:** 2026-08-21
- **First published:** 2026-08-21
- **Publisher country:** US
- **Size:** 9.52 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=org.chi.psi.opalfield)
- **Privacy policy:** [https://www.cardshark.lat/privacy](https://www.cardshark.lat/privacy)

## Description

Opal Field puts you behind the velvet bench of a master opal appraiser. Fresh rough arrives from the mine; drag to turn each stone, tap the golden rail to aim the warm spotlight, and watch the live spectrum bar as hidden play-of-color blooms across the surface. Every rough has its own secret angle. Lock in your grade at the peak: coverage times color range sets the value, and a true full fire pays a fat bonus.<br><br>Beware flawed opals. When their fire burns bright, crack stress climbs; push too long and the stone shatters on the stand.<br><br>Earn coins with every appraisal and build out your bench: a midnight velvet turntable skin, a spectrometer that hints the peak, a steady pad that calms cracked stones, a focus spotlight, a chrono loupe for extra time, and prism polish that boosts every payout. All synthesized sound, smooth play, zero ads.<br><br>Can you find every full fire?

## Rankings

- #3,078,055 — Overall

## Permissions and access

### Permissions

- `android.permission.VIBRATE`
- `com.android.vending.CHECK_LICENSE`
- `org.chi.psi.opalfield.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/org.chi.psi.opalfield)