Madagascar Beryl
Aquamarine, morganite, and limited emerald production from Madagascar - characteristics and market position.
Introduction
Madagascar produces significant quantities of beryl varieties from its pegmatite-
hosted deposits, principally in the central and northern highlands. Aquamarine from
Madagascar is among the most commercially significant output: clean crystals with
light to medium blue colour, sometimes achieving "Santa Maria"-type deeper blue
saturation, and generally comparable in quality to Brazilian material. Heat treatment
to remove a greenish modifier is standard practice and widely accepted.
Morganite (pink beryl, Mn-coloured) is well-represented in Madagascar production,
requiring heat treatment to reduce an orange or yellow component and produce purer
pink. Emerald production is limited and niche; Madagascar is not a major emerald
source but occasionally produces material of collector interest with distinct
inclusion characteristics. All Madagascar beryl is pegmatite-hosted, reflecting
the island's extensive LCT granitic pegmatite terrain, and no origin-specific
analytical fingerprint distinguishes Madagascar beryl at trade level; provenance
documentation and physical properties provide identification. [1][2]
Aquamarine
Madagascar's fine aquamarine:
Characteristics
- Fine quality blue material [1]
- Comparable to Brazilian aquamarine
- Clean crystals available
- Growing market presence
Colour
- Light to medium blue typical
- Some intense "Santa Maria" type colour
- Slight greenish modifier common
- Heat treatment can improve colour
Quality
- Clarity: Often excellent
- Sizes: Good range available
- Cut: Well-suited to step cuts
- Value: Competitive with Brazil
Aquamarine Treatment
Enhancement considerations:
- Heat treatment: Common; removes green modifier [2]
- Purpose: Produces purer blue colour
- Detection: Difficult to detect
- Disclosure: Variable in trade
- Acceptance: Generally accepted practice
Morganite
Pink beryl production:
Characteristics
- Good colour saturation
- Often requires heat treatment
- Competitive with other sources
- Clean material available
Colour Range
- Pale pink to medium pink
- Some peachy-pink material
- Heat treatment improves colour [2]
- Removes orange/yellow component
Market
- Growing demand for morganite
- Competes with Brazil, Afghanistan
- Good value proposition
- Popular in fashion jewellery
Emerald
Madagascar's limited emerald production:
Characteristics
- Limited but interesting production
- Smaller market share than Colombia/Zambia
- Distinct inclusion characteristics
- Collector interest
Quality
- Variable quality range
- Some fine colour possible
- Different character from Colombian
- Often included (typical for emerald)
Market Position
- Niche production
- Not a major emerald source
- Interest for origin-specific collectors
- Value below Colombian/Zambian comparable quality
Other Beryl
Additional beryl varieties:
Heliodor
- Yellow to golden beryl
- Some fine material
- Limited production
- Collector interest
Goshenite
- Colourless beryl
- Clean crystals available
- Limited gem market demand
- Occasionally seen in jewellery
Market Overview
Madagascar beryl in the trade:
- Aquamarine: Well-established; competitive quality
- Morganite: Growing market share
- Emerald: Niche; collector interest
- Value: Generally competitive pricing
- Quality: Can match Brazilian material
References
- ↑ 1. Schumann, W. (2009). Gemstones of the World (4th ed.). Sterling Publishing. ISBN: 978-1-4027-6829-3.
- ↑ 2. Read, P. (2014). Gemmology (3rd ed.). Butterworth-Heinemann. DOI: 10.4324/9780080507224.