Earthheart Emerald

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# Description
These deep green crystals are vibrant and richly colored, pulsing with a soft, inner light. Ranging in size from that of a pebble to as large as a melon, each Earthheart Emerald is a marvel of nature's craftsmanship. They are raw and rugged, yet hold an untamed beauty that speaks of the elemental power locked within.
 
The value of an Earthheart Emerald greatly depends on its size, quality, and the amount of energy it holds. Prices could vary depending on the setting, availability of the emeralds, and demand for such a power source.
 
| Size | Energy Content | Value  |
|---|---|---|
| Small (< 1") | [left]Power a simple device, such as a small clockwork item, for up to a month.[/left] | 50 gp -  200 gp  |
| Medium (1"-4") | [left]Power a large mechanical object, like a mechanical golem, for up to a week.[/left] | 500 gp -  2,000 gp  |
| Large (4"-8") | [left]Power an entire building's worth of machinery for a day.[/left] | 5,000 gp -  20,000 gp  |
 
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# Properties
## Physical Characteristics
 
## Properties
**Source of Power:**  The energy within an Earthheart Emerald is drawn from the elemental heart of the world itself. Over centuries, the earth's innate elemental power is absorbed and condensed within these crystals, resulting in a stone capable of holding vast amounts of energy. This energy is similar to geothermal power on a highly concentrated scale.
 
## Compounds
 
## Geology/Geography
 
## Origin
 
## Half Life / Deterioration / Expiration
An Earthheart Emerald can hold its charge indefinitely until the energy is extracted. Once the energy has been drained, the emerald becomes a regular stone.
 
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# History & Usage
## History
 
## Discovery
 
## Common Use
Used long ago by artificers and for powering machines. To extract the power, a process of runic engraving (also lost to time) is required where the emerald is inscribed with specific runes.
 
## Cultural Significance and Usage
 
## Industrial Use
 
## Refinement
 
## Manufacturing / Products
 
## By-products & Side Products
 
## Hazards
If an emerald is cracked or damaged, the energy within might leak out prematurely or explode in a burst of power. The size of the explosion and its effects depend on how much energy was stored within the emerald.
 
## Environmental Impact
 
## Reusability & Recycling
 
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# Distribution
## Trade & Market
Virtually non-existent
 
## Storage
Must be kept carefully packed to avoid physical damage potentially leading to an explosion.
 
## Law & Regulation
 
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**Type:** Mineral<br>
**Value:** Varies with size, quality, energy content<br>
**Rarity:** Legendary - no source exists in modern times
 
**Odour:** Odorless<br>
**Taste:** Slightly salty<br>
**Colour:** Rich, deep green, pulsing with an inner light<br>
**Boiling Point:** <br>
**Melting/Freezing Point:** <br>
**Density:**  <br><br>
**Common State:** Crystals of varing size - pebbles to small melons
 
**Related Locations**
 
**Related Species**
 
**Related Items**
 
**Related Technologies**
 
**Related Professions**
 
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