Peregrine Diamonds Ltd. (TSX:PGD) reports a 15 percent increase in the Inferred Mineral Resource estimate for the upper 250 metres of the CH-6 kimberlite pipe, and a 23 to 26 percent increase in the estimate of additional kimberlite tonnage at CH-6. The tonnage estimates for the CH-7 and CH-44 kimberlite pipes have also significantly increased by 35 to 51 percent and 10 to 56 percent respectively, both results of drill programs completed by the Company in 2014. The CH-6, CH-7 and CH-44 kimberlite pipes are located on Peregrine’s 100 percent-owned Chidliak project (“Chidliak”) on Baffin Island, 120 kilometres from Iqaluit, the capital of Nunavut, Canada.

Today’s full press release can be read here.

This information updates their initial May 2014 technical report, available at their site or in this blog’s REPORTS page.

Sínese is a Lisbon-based consulting and engineering company specialised in Economic Geology. For further information or advice on mineral projects (Angola, Mozambique, Portugal, Brazil or elsewhere), contact us at or use the contact form.

GEMFIELDS (AIM:GEM) rubies in Mozambique

Mozambique (Moçambique) contains a major gem province, until recently one of the world’s hidden treasures. If their tourmalines and other pegmatite related gems were already famous, ruby emerged as hot news in the last few years, with GEMFIELDS (AIM:GEM) producing mine  in Montepuez (northern Mozambique, Cabo Delgado province) – click here for their concession’s kmz (Google Earth format file shared via a Dropbox link).

In November 2014, Gemfields announced that an exceptional 40.23 carat rough ruby from Montepuez would form part of the December auction. The ruby was successfully sold, with the price remaining undisclosed given the principles on which Gemfields’ auctions are conducted – original statement here, also subject of a previous post in this blog.

Recently (original statement here),

Further to the announcement made on 7 December 2012, Gemfields plc, (AIM: GEM) is pleased to announce the completion of its acquisition of controlling interests in two additional ruby deposits in the Montepuez district of the Cabo Delgado province in Mozambique (the “Megaruma Licences”).

The conditions of the acquisition agreement have now been satisfied and the licences, valid for an initial period of 25 years, were formally issued by the Mozambican government on 22 September 2014 and 12 November 2014 respectively to a new company, Megaruma Mining Limitada (“Megaruma”), in which Gemfields is a 75% shareholder. The two licences, which do not border on one another, each share a boundary with Gemfields’ existing 75% owned Montepuez ruby deposit and cover approximately 19,000 hectares and 15,000 hectares respectively.

Previously, GEMFIELDS Annual Report and Financial Statements 2014 (June 30, 2014) ruby highlights:

Bulk sampling summary for 75% owned Montepuez Ruby Mining Limitada (“Montepuez”) in Mozambique for the year:

  • Approximately 6.5 million carats of ruby and corundum extracted (2013: 1.9 million carats) taking the total ruby and corundum extracted to 8.4 million carats.
  • Rough sales and auctions:
    • First-of-a-kind proprietary grading and sorting framework for rough rubies and corundum was well received at the inaugural auction in Singapore in June 2014;
    • First auction of rough ruby and corundum generated revenues of US$33.5 million at an average realised price of US$18.43 per carat; and
    • Next ruby auction is scheduled to take place before 31 December 2014 – results above.

GEMFIELDS is listed in London’s AIM (AIM:GEM) – check it here. You can also navigate into their website at

Sínese is a Lisbon-based consulting and engineering company specialised in Economic Geology. For further information or advice on mineral projects (Angola, Mozambique, Portugal, Brazil or elsewhere), contact us at or use the contact form.

Declaração de Estatuto de Utilidade Pública da Associação Portuguesa de Geólogos

PARABÉNS. A Associação Portuguesa de Geólogos soube conquistar ao longo to tempo o reconhecimento nacional e internacional para si e para os geólogos que representa.

Associação Portuguesa de Geólogos


A Associação Portuguesa de Geólogos obteve a declaração de Utilidade Pública segundo o Despacho n.º 649/2015 do Diário da República de 22 de janeiro de 2015, II Série.

São pessoas coletivas de mera utilidade pública as associações, fundações ou cooperativas que prossigam fins de interesse geral, ou da comunidade nacional ou de qualquer região ou circunscrição, cooperando com a Administração Central ou a Administração Local, em termos de merecerem da parte desta Administração a declaração de utilidade pública.

Aceda aqui ao Diário da República N.º 15/2015, Série II de  22 de janeiro de 2015.
Aceda aqui ao Despacho n.º 649/2015

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Beacon Hill Resources puts Minas de Moatize for sale

In additional bad news for the Moatize coal, according to Macauhub, Beacon Hill Resources (will have to sell Minas de Moatize, its coal asset in Mozambique due to its inability to secure financing, and its consequent failure to service its debts, the company said in a statement. The full company’s statement can be seen here in the Jan 12, 2015 announcement.

Beacon Hill Resources Plc is focussed on building and developing a portfolio of near term production projects in commodities relating to the steel production industry. Beacon Hill listed on the AIM market of the London Stock Exchange (Code: BHR).

According to the company’s website, Beacon Hill Resources Plc owns and operates the Minas Moatize Coal Mine, which is one of three operating coal mines producing and selling coal in Mozambique’s Moatize Coal Basin, one of the largest developing coking coal regions in the world.

In addition to Minas Moatize, Beacon Hill holds a majority interest in the Changara Coal Project, an exploration project that is located within close proximity to its flagship Minas Moatize Coal Project

Additional data about Minas de Moatize project – reserves – can be seen here.

Earlier bad news, with Rio Tinto’s sale of coal assets in Mozambique, in a 2014 post.

Natural stone – Portuguese emerges as leader

Natural Stone per capita imports and exports 2013
Natural Stone per capita imports and exports 2013

According to 2013 provisional data from the international trade UN database, with close to 45 USD/person, Portugal is the per capita world leader in natural stone exports.

A traditional stone loving country, Portugal is a producer of natural stone with a mix that includes marble, limestone and granite blocks, slabs and, particularly, end-products and projects. The country is currently (2013 data) the seventh largest natural stone world exporter (457 M USD).

Sínese has been involved in natural stone projects for a quarter of a century, in Portugal but also elsewhere. Luís Caetano, our expert, worked for the major Portuguese stone exporters, with projects all over the world. For further information or advice on natural stone projects, contact us at or use the contact form.

Kimberley Process regulamentado em Portugal – oportunidade para o investimento em comércio, lapidação e joalharia

É agora possível desenvolver projetos de comércio e lapidação de diamantes e outras pedras preciosas em Portugal.

Seguindo o exemplo de diversos outros países da União Europeia, após vários anos de trabalho – em estreita colaboração com a DGAE – Direção Geral das Atividades Económicas do Ministério da Economia e a AT – Autoridade Tributária do Ministério das Finanças, a regulamentação do Processo Kimberley em Portugal acaba de ser aprovada e publicada – pode ser consultada aqui.

Portugal é um país com fortíssimas ligações históricas à extração, comércio e lapidação de diamantes. Apesar das imperfeições da legislação – pouco prática, demasiado regulamentada e afastada da realidade, por exemplo na qualificação dos peritos – este é um importante desenvolvimento e uma oportunidade para investidores portugueses e estrangeiros comerciarem, lapidarem e criarem joalharia com diamantes e outras pedras preciosas em Portugal.

Há claramente sinergias a explorar entre a cultura do diamante, o capital e recursos humanos especializados existentes em Portugal (no comércio, lapidação e joalharia) e os mineradores de diamantes em Angola, Brasil, Moçambique e Guiné-Concakri (citando apenas os países da CPLP onde são explorados jazigos de diamantes e outras pedras preciosas).

Criada a oportunidade, é tempo de ação dos empreendedores.

A Sínese é uma empresa de consultoria especializada em Geologia Económica e Recursos Minerais. Para obter mais informações sobre o Processo Kimberley e a sua regulamentação em Portugal ou sobre o potencial de negócio agora criado,  contacte-nos através ou use o formulário de contacto.

Alluvial sampling and kimberlite at LUCAPA’s (ASX:LOM) Lulo project

Lucapa Diamond Company Limited (ASX: LOM) recently released some reports containing information (grade and stone size) on the samples recovered in their Lulo concession – our post of December 19 about the scheduled start of the alluvial operations.

The releases are detailed but we decided to extract the locations of their reported sampling pits and kimberlite and convert it to kmz layers so that you are able to feel first hand the information by browsing it with Google Earth or another suitable application. Consider it a late New Year gift from Sínese or a way to celebrate this blog’s 50th post.

The layers are:

Just click on the links to download them; open them in Google Earth. Enjoy.

For further information or advice on this or other diamond project (Angola or elsewhere), contact us at or use the contact form.

GIA’s 2015 Jewelry Trend Predictions

Jewelry trend predictions for 2015 by GIA include a revival of the 70’s design, geometric and Art Deco, an expectation that diamond and gemstone jewelry will grow on the accelerating economy (well, this is a bold assumption, at least on my side of the world) with difficult times for manufacturers, pressed by tight margins and difficult financing – no news here…

You can read all about it at their blog.

Luembe (Chimbongo) diamond deposits (NE Angola) – first photo gallery

Luembe river diamonds
Luembe river diamonds

The Chimbongo (aka Chibongo)- Luembe river, NE Angola – alluvial diamond deposits have been worked for several decades. The area is characterised by a close to 3 diamonds per carat diamond size and a 150-200 USD/ct price range.
The Luembe river, an affluent of the Kasai (itself a tributary of the mighty Congo river) structures the mineralisation (present in the gravels of the river bottom and in its alluvial plains but also in earlier conglomerates – the cretacic Calonda Formation – aka Cuango or Kwango Formation).
Luxilo, located north of N’Zargi, is the most important locality nearby and was formerly the base camp of the Chimbongo mining operations.
The blog has a new photo gallery about this deposit. Other galleries will follow suit – keep checking.

Angolan diamond production in 2014 (November figures)

2014 figures of diamond production will likely be close enough to official targets for the Angolan Government to declare success. The 1.208 billion USD accumulated production reached in November (651 MUSD in this year’s first half) mean that the year’s figure will be close to 1.3 billion USD, just a bit short of the year’s official objective of 1.332 billion USD (within an acceptable margin of error; I would be happy if all forecasts were as good).
This value is marginally above with the 1.278 billion USD value of 2013 (KP statistics) – roughly a 2% increase. It was reached with a mined volume 15% below official target (and higher than forecast prices).
Next year’s official target for diamond production is likely to be more ambitious, as sharply declining oil prices (75% of the Government’s income) will add great pressure to the Angolan budget.